Remove "Contributed by" lines

We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date.  Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.

Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions.  These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.

The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively.  These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:

https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

72 files changed, 0 insertions, 94 deletions

diff --git a/sysdeps/alpha/Makefile b/sysdeps/alpha/Makefile
index 169596ea1c..fbc0cb99ce 100644
--- a/sysdeps/alpha/Makefile
+++ b/sysdeps/alpha/Makefile
@@ -1,6 +1,5 @@
 # Copyright (C) 1993-2021 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
-# Contributed by Brendan Kehoe (brendan@zen.org).
 
 # The GNU C Library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/_mcount.S b/sysdeps/alpha/_mcount.S
index b9cf73b203..9bdf3afafd 100644
--- a/sysdeps/alpha/_mcount.S
+++ b/sysdeps/alpha/_mcount.S
@@ -1,6 +1,5 @@
 /* Machine-specific calling sequence for `mcount' profiling function.  alpha
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev6/memset.S b/sysdeps/alpha/alphaev6/memset.S
index f1b648bf43..7905e84e1c 100644
--- a/sysdeps/alpha/alphaev6/memset.S
+++ b/sysdeps/alpha/alphaev6/memset.S
@@ -1,6 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
-   EV6 optimized by Rick Gorton <rick.gorton@alpha-processor.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev6/stxcpy.S b/sysdeps/alpha/alphaev6/stxcpy.S
index 20beddef45..0f569a7d89 100644
--- a/sysdeps/alpha/alphaev6/stxcpy.S
+++ b/sysdeps/alpha/alphaev6/stxcpy.S
@@ -1,6 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
-   EV6 optimized by Rick Gorton <rick.gorton@alpha-processor.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev6/stxncpy.S b/sysdeps/alpha/alphaev6/stxncpy.S
index 4eb2d71e14..983d230c27 100644
--- a/sysdeps/alpha/alphaev6/stxncpy.S
+++ b/sysdeps/alpha/alphaev6/stxncpy.S
@@ -1,6 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
-   EV6 optimized by Rick Gorton <rick.gorton@alpha-processor.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev67/stpcpy.S b/sysdeps/alpha/alphaev67/stpcpy.S
index 6836c6853f..945ed9d2db 100644
--- a/sysdeps/alpha/alphaev67/stpcpy.S
+++ b/sysdeps/alpha/alphaev67/stpcpy.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@redhat.com>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/alphaev67/stpncpy.S b/sysdeps/alpha/alphaev67/stpncpy.S
index cda7a6696a..42743bce19 100644
--- a/sysdeps/alpha/alphaev67/stpncpy.S
+++ b/sysdeps/alpha/alphaev67/stpncpy.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@redhat.com)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev67/strcat.S b/sysdeps/alpha/alphaev67/strcat.S
index 282c3df722..50a1925c03 100644
--- a/sysdeps/alpha/alphaev67/strcat.S
+++ b/sysdeps/alpha/alphaev67/strcat.S
@@ -1,6 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
-   EV67 optimized by Rick Gorton <rick.gorton@alpha-processor.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev67/strchr.S b/sysdeps/alpha/alphaev67/strchr.S
index 4c16fdca6c..510fb3d3a1 100644
--- a/sysdeps/alpha/alphaev67/strchr.S
+++ b/sysdeps/alpha/alphaev67/strchr.S
@@ -1,6 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
-   EV67 optimized by Rick Gorton <rick.gorton@alpha-processor.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev67/strlen.S b/sysdeps/alpha/alphaev67/strlen.S
index 7af6f3d375..07def1bb56 100644
--- a/sysdeps/alpha/alphaev67/strlen.S
+++ b/sysdeps/alpha/alphaev67/strlen.S
@@ -1,6 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
-   EV67 optimized by Rick Gorton <rick.gorton@alpha-processor.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/alphaev67/strncat.S b/sysdeps/alpha/alphaev67/strncat.S
index 72794a6e09..83fac317b1 100644
--- a/sysdeps/alpha/alphaev67/strncat.S
+++ b/sysdeps/alpha/alphaev67/strncat.S
@@ -1,6 +1,4 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
-   EV67 optimized by Rick Gorton <rick.gorton@alpha-processor.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/bzero.S b/sysdeps/alpha/bzero.S
index 86c05947b9..ea317aef05 100644
--- a/sysdeps/alpha/bzero.S
+++ b/sysdeps/alpha/bzero.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/div.S b/sysdeps/alpha/div.S
index 62b676bdac..bfde946b9d 100644
--- a/sysdeps/alpha/div.S
+++ b/sysdeps/alpha/div.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/dl-machine.h b/sysdeps/alpha/dl-machine.h
index 2cd2213d9a..9e327b7f17 100644
--- a/sysdeps/alpha/dl-machine.h
+++ b/sysdeps/alpha/dl-machine.h
@@ -1,7 +1,6 @@
 /* Machine-dependent ELF dynamic relocation inline functions.  Alpha version.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/dl-procinfo.c b/sysdeps/alpha/dl-procinfo.c
index c1510493e2..4790866e7a 100644
--- a/sysdeps/alpha/dl-procinfo.c
+++ b/sysdeps/alpha/dl-procinfo.c
@@ -1,7 +1,6 @@
 /* Data for Alpha version of processor capability information.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Aurelien Jarno <aurelien@aurel32.net>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/dl-procinfo.h b/sysdeps/alpha/dl-procinfo.h
index c0d6043f3f..ea6842cac3 100644
--- a/sysdeps/alpha/dl-procinfo.h
+++ b/sysdeps/alpha/dl-procinfo.h
@@ -1,7 +1,6 @@
 /* Alpha version of processor capability information handling macros.
    Copyright (C) 2008-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Aurelien Jarno <aurelien@aurel32.net>, 2008.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/e_sqrtl.c b/sysdeps/alpha/e_sqrtl.c
index f78b912895..350cb8d8e8 100644
--- a/sysdeps/alpha/e_sqrtl.c
+++ b/sysdeps/alpha/e_sqrtl.c
@@ -1,8 +1,6 @@
 /* long double square root in software floating-point emulation.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ffs.S b/sysdeps/alpha/ffs.S
index ee127bbf60..adfd5965aa 100644
--- a/sysdeps/alpha/ffs.S
+++ b/sysdeps/alpha/ffs.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/fpu/e_sqrt.c b/sysdeps/alpha/fpu/e_sqrt.c
index cabc800bd1..d211cc21fe 100644
--- a/sysdeps/alpha/fpu/e_sqrt.c
+++ b/sysdeps/alpha/fpu/e_sqrt.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/fpu/fclrexcpt.c b/sysdeps/alpha/fpu/fclrexcpt.c
index cb4513eb7f..5e44cfe111 100644
--- a/sysdeps/alpha/fpu/fclrexcpt.c
+++ b/sysdeps/alpha/fpu/fclrexcpt.c
@@ -1,7 +1,6 @@
 /* Clear given exceptions in current floating-point environment.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fedisblxcpt.c b/sysdeps/alpha/fpu/fedisblxcpt.c
index 91c3860c45..8cf2d7ea7b 100644
--- a/sysdeps/alpha/fpu/fedisblxcpt.c
+++ b/sysdeps/alpha/fpu/fedisblxcpt.c
@@ -1,7 +1,6 @@
 /* Disable floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/feenablxcpt.c b/sysdeps/alpha/fpu/feenablxcpt.c
index ac45058c02..8e111fcb79 100644
--- a/sysdeps/alpha/fpu/feenablxcpt.c
+++ b/sysdeps/alpha/fpu/feenablxcpt.c
@@ -1,7 +1,6 @@
 /* Enable floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fegetenv.c b/sysdeps/alpha/fpu/fegetenv.c
index 20e51ceeba..64da646cd5 100644
--- a/sysdeps/alpha/fpu/fegetenv.c
+++ b/sysdeps/alpha/fpu/fegetenv.c
@@ -1,7 +1,6 @@
 /* Store current floating-point environment.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fegetexcept.c b/sysdeps/alpha/fpu/fegetexcept.c
index a2993c191d..bd81026757 100644
--- a/sysdeps/alpha/fpu/fegetexcept.c
+++ b/sysdeps/alpha/fpu/fegetexcept.c
@@ -1,7 +1,6 @@
 /* Get enabled floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fegetround.c b/sysdeps/alpha/fpu/fegetround.c
index 4b337abcfa..6d92f54380 100644
--- a/sysdeps/alpha/fpu/fegetround.c
+++ b/sysdeps/alpha/fpu/fegetround.c
@@ -1,7 +1,6 @@
 /* Return current rounding direction.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/feholdexcpt.c b/sysdeps/alpha/fpu/feholdexcpt.c
index 637d51a7a9..9383f4dd18 100644
--- a/sysdeps/alpha/fpu/feholdexcpt.c
+++ b/sysdeps/alpha/fpu/feholdexcpt.c
@@ -1,7 +1,6 @@
 /* Store current floating-point environment and clear exceptions.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fesetenv.c b/sysdeps/alpha/fpu/fesetenv.c
index 2e5e760ca4..237df04ae6 100644
--- a/sysdeps/alpha/fpu/fesetenv.c
+++ b/sysdeps/alpha/fpu/fesetenv.c
@@ -1,7 +1,6 @@
 /* Install given floating-point environment.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fesetround.c b/sysdeps/alpha/fpu/fesetround.c
index 36b5f3689c..147f4c96fc 100644
--- a/sysdeps/alpha/fpu/fesetround.c
+++ b/sysdeps/alpha/fpu/fesetround.c
@@ -1,7 +1,6 @@
 /* Set current rounding direction.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/feupdateenv.c b/sysdeps/alpha/fpu/feupdateenv.c
index 8978a25cbb..164916cccf 100644
--- a/sysdeps/alpha/fpu/feupdateenv.c
+++ b/sysdeps/alpha/fpu/feupdateenv.c
@@ -1,7 +1,6 @@
 /* Install given floating-point environment and raise exceptions.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fgetexcptflg.c b/sysdeps/alpha/fpu/fgetexcptflg.c
index 1b65af1cc0..3fb00b88aa 100644
--- a/sysdeps/alpha/fpu/fgetexcptflg.c
+++ b/sysdeps/alpha/fpu/fgetexcptflg.c
@@ -1,7 +1,6 @@
 /* Store current representation for exceptions.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fpu_control.h b/sysdeps/alpha/fpu/fpu_control.h
index 7b1a52920d..6ed0a2a457 100644
--- a/sysdeps/alpha/fpu/fpu_control.h
+++ b/sysdeps/alpha/fpu/fpu_control.h
@@ -1,7 +1,6 @@
 /* FPU control word bits.  Alpha-mapped-to-Intel version.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Olaf Flebbe.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/fsetexcptflg.c b/sysdeps/alpha/fpu/fsetexcptflg.c
index cbfb796cd8..75b4e86591 100644
--- a/sysdeps/alpha/fpu/fsetexcptflg.c
+++ b/sysdeps/alpha/fpu/fsetexcptflg.c
@@ -1,7 +1,6 @@
 /* Set floating-point environment exception handling.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/ftestexcept.c b/sysdeps/alpha/fpu/ftestexcept.c
index ac480e1757..f78c643165 100644
--- a/sysdeps/alpha/fpu/ftestexcept.c
+++ b/sysdeps/alpha/fpu/ftestexcept.c
@@ -1,7 +1,6 @@
 /* Test exception in current environment.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/s_copysign.c b/sysdeps/alpha/fpu/s_copysign.c
index 559a3338fd..ef1771809d 100644
--- a/sysdeps/alpha/fpu/s_copysign.c
+++ b/sysdeps/alpha/fpu/s_copysign.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/s_copysignf.c b/sysdeps/alpha/fpu/s_copysignf.c
index c28a5e404d..070959f94d 100644
--- a/sysdeps/alpha/fpu/s_copysignf.c
+++ b/sysdeps/alpha/fpu/s_copysignf.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/s_fabs.c b/sysdeps/alpha/fpu/s_fabs.c
index c56f9dd2b2..e7bc26b2c6 100644
--- a/sysdeps/alpha/fpu/s_fabs.c
+++ b/sysdeps/alpha/fpu/s_fabs.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/s_fabsf.c b/sysdeps/alpha/fpu/s_fabsf.c
index a26c2ad03b..94dd12ccd5 100644
--- a/sysdeps/alpha/fpu/s_fabsf.c
+++ b/sysdeps/alpha/fpu/s_fabsf.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/s_rint.c b/sysdeps/alpha/fpu/s_rint.c
index a88d162bcc..864f062cf6 100644
--- a/sysdeps/alpha/fpu/s_rint.c
+++ b/sysdeps/alpha/fpu/s_rint.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/fpu/s_rintf.c b/sysdeps/alpha/fpu/s_rintf.c
index 1ac948cf5a..86cd574a84 100644
--- a/sysdeps/alpha/fpu/s_rintf.c
+++ b/sysdeps/alpha/fpu/s_rintf.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/hp-timing.h b/sysdeps/alpha/hp-timing.h
index 2ff65c2370..3da8463013 100644
--- a/sysdeps/alpha/hp-timing.h
+++ b/sysdeps/alpha/hp-timing.h
@@ -1,7 +1,6 @@
 /* High precision, low overhead timing functions.  Alpha version.
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@redhat.com>, 2001.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/jmpbuf-unwind.h b/sysdeps/alpha/jmpbuf-unwind.h
index 0c1eba04bf..2e7a6cb363 100644
--- a/sysdeps/alpha/jmpbuf-unwind.h
+++ b/sysdeps/alpha/jmpbuf-unwind.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ldiv.S b/sysdeps/alpha/ldiv.S
index c90af5b269..5159a3846d 100644
--- a/sysdeps/alpha/ldiv.S
+++ b/sysdeps/alpha/ldiv.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/memset.S b/sysdeps/alpha/memset.S
index 65acc57f2c..e64dfc1f8a 100644
--- a/sysdeps/alpha/memset.S
+++ b/sysdeps/alpha/memset.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/nptl/pthread_spin_lock.S b/sysdeps/alpha/nptl/pthread_spin_lock.S
index 6ffd68d79d..7ce0530d6e 100644
--- a/sysdeps/alpha/nptl/pthread_spin_lock.S
+++ b/sysdeps/alpha/nptl/pthread_spin_lock.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson  <rth@twiddle.net>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/nptl/pthread_spin_trylock.S b/sysdeps/alpha/nptl/pthread_spin_trylock.S
index 31ba50711c..df72bc85e4 100644
--- a/sysdeps/alpha/nptl/pthread_spin_trylock.S
+++ b/sysdeps/alpha/nptl/pthread_spin_trylock.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson  <rth@twiddle.net>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_add.c b/sysdeps/alpha/ots_add.c
index bc1d50b66f..a0fb377527 100644
--- a/sysdeps/alpha/ots_add.c
+++ b/sysdeps/alpha/ots_add.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: addition.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_cmp.c b/sysdeps/alpha/ots_cmp.c
index d224ef63f5..13b294be98 100644
--- a/sysdeps/alpha/ots_cmp.c
+++ b/sysdeps/alpha/ots_cmp.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: comparison.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_cmpe.c b/sysdeps/alpha/ots_cmpe.c
index 25fb48b611..9066d89bda 100644
--- a/sysdeps/alpha/ots_cmpe.c
+++ b/sysdeps/alpha/ots_cmpe.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: comparison.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_cvtqux.c b/sysdeps/alpha/ots_cvtqux.c
index 098aebe4e7..18bf35d6a2 100644
--- a/sysdeps/alpha/ots_cvtqux.c
+++ b/sysdeps/alpha/ots_cvtqux.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: unsigned integer to float conversion.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_cvtqx.c b/sysdeps/alpha/ots_cvtqx.c
index e26b89db89..30d3f8b57b 100644
--- a/sysdeps/alpha/ots_cvtqx.c
+++ b/sysdeps/alpha/ots_cvtqx.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: signed integer to float conversion.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_cvttx.c b/sysdeps/alpha/ots_cvttx.c
index b900bca5f9..64ea9eade7 100644
--- a/sysdeps/alpha/ots_cvttx.c
+++ b/sysdeps/alpha/ots_cvttx.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: floating point extension.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_cvtxq.c b/sysdeps/alpha/ots_cvtxq.c
index c8256a0139..6f32ce3531 100644
--- a/sysdeps/alpha/ots_cvtxq.c
+++ b/sysdeps/alpha/ots_cvtxq.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: float to integer conversion.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_cvtxt.c b/sysdeps/alpha/ots_cvtxt.c
index bf6093623e..0de0f7a603 100644
--- a/sysdeps/alpha/ots_cvtxt.c
+++ b/sysdeps/alpha/ots_cvtxt.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: floating point truncation.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_div.c b/sysdeps/alpha/ots_div.c
index 94c8e2db91..b30b541698 100644
--- a/sysdeps/alpha/ots_div.c
+++ b/sysdeps/alpha/ots_div.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: division.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_mul.c b/sysdeps/alpha/ots_mul.c
index 48d0245784..f3c31db9d0 100644
--- a/sysdeps/alpha/ots_mul.c
+++ b/sysdeps/alpha/ots_mul.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: multiplication.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_nintxq.c b/sysdeps/alpha/ots_nintxq.c
index f11554bd5e..8c4d8d08f3 100644
--- a/sysdeps/alpha/ots_nintxq.c
+++ b/sysdeps/alpha/ots_nintxq.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: convert to fortran nearest.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/ots_sub.c b/sysdeps/alpha/ots_sub.c
index 937f79a0a6..7e395a82fa 100644
--- a/sysdeps/alpha/ots_sub.c
+++ b/sysdeps/alpha/ots_sub.c
@@ -1,8 +1,6 @@
 /* Software floating-point emulation: subtraction.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/reml.S b/sysdeps/alpha/reml.S
index d2dc42f820..26735e3785 100644
--- a/sysdeps/alpha/reml.S
+++ b/sysdeps/alpha/reml.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 2004-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson  <rth@twiddle.net>
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/sfp-machine.h b/sysdeps/alpha/sfp-machine.h
index b25c34f8da..910d293214 100644
--- a/sysdeps/alpha/sfp-machine.h
+++ b/sysdeps/alpha/sfp-machine.h
@@ -2,9 +2,6 @@
    Alpha userland IEEE 128-bit version.
    Copyright (C) 2004-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com),
-		  Jakub Jelinek (jj@ultra.linux.cz) and
-		  David S. Miller (davem@redhat.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/start.S b/sysdeps/alpha/start.S
index 65dcd4d392..90ca82fa1d 100644
--- a/sysdeps/alpha/start.S
+++ b/sysdeps/alpha/start.S
@@ -1,7 +1,6 @@
 /* Startup code for Alpha/ELF.
    Copyright (C) 1993-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/stpcpy.S b/sysdeps/alpha/stpcpy.S
index 537b0f31ce..30cbd5f5f3 100644
--- a/sysdeps/alpha/stpcpy.S
+++ b/sysdeps/alpha/stpcpy.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/stpncpy.S b/sysdeps/alpha/stpncpy.S
index d8e2b60420..de17ed2c86 100644
--- a/sysdeps/alpha/stpncpy.S
+++ b/sysdeps/alpha/stpncpy.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu)
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/strcat.S b/sysdeps/alpha/strcat.S
index 0dde37915c..781dd3abdb 100644
--- a/sysdeps/alpha/strcat.S
+++ b/sysdeps/alpha/strcat.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/strchr.S b/sysdeps/alpha/strchr.S
index dc2d9c1642..81652c900d 100644
--- a/sysdeps/alpha/strchr.S
+++ b/sysdeps/alpha/strchr.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@tamu.edu)
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/strcmp.S b/sysdeps/alpha/strcmp.S
index 40f827378d..ef25771cb2 100644
--- a/sysdeps/alpha/strcmp.S
+++ b/sysdeps/alpha/strcmp.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/strcpy.S b/sysdeps/alpha/strcpy.S
index 20a09abc94..9c714feb79 100644
--- a/sysdeps/alpha/strcpy.S
+++ b/sysdeps/alpha/strcpy.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/strlen.S b/sysdeps/alpha/strlen.S
index 54235c46b3..dd1458cd75 100644
--- a/sysdeps/alpha/strlen.S
+++ b/sysdeps/alpha/strlen.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/strncat.S b/sysdeps/alpha/strncat.S
index 7a6704bdfb..400e9110d3 100644
--- a/sysdeps/alpha/strncat.S
+++ b/sysdeps/alpha/strncat.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson <rth@tamu.edu>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/alpha/strncmp.S b/sysdeps/alpha/strncmp.S
index 7aa1589410..be6d5787fb 100644
--- a/sysdeps/alpha/strncmp.S
+++ b/sysdeps/alpha/strncmp.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/strncpy.S b/sysdeps/alpha/strncpy.S
index 3eeb902deb..224253d763 100644
--- a/sysdeps/alpha/strncpy.S
+++ b/sysdeps/alpha/strncpy.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/stxcpy.S b/sysdeps/alpha/stxcpy.S
index a68182b066..b099e73055 100644
--- a/sysdeps/alpha/stxcpy.S
+++ b/sysdeps/alpha/stxcpy.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/alpha/stxncpy.S b/sysdeps/alpha/stxncpy.S
index eec3400e0c..027f460cdc 100644
--- a/sysdeps/alpha/stxncpy.S
+++ b/sysdeps/alpha/stxncpy.S
@@ -1,5 +1,4 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or