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>

40 files changed, 0 insertions, 40 deletions

diff --git a/nis/nis_add.c b/nis/nis_add.c
index 62f97b56c7..18296b3233 100644
--- a/nis/nis_add.c
+++ b/nis/nis_add.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 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/nis/nis_addmember.c b/nis/nis_addmember.c
index e69f995628..4183e9251d 100644
--- a/nis/nis_addmember.c
+++ b/nis/nis_addmember.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_call.c b/nis/nis_call.c
index 043f1bd431..624139a7f4 100644
--- a/nis/nis_call.c
+++ b/nis/nis_call.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_callback.c b/nis/nis_callback.c
index 982dad2a3b..1f8f1d619c 100644
--- a/nis/nis_callback.c
+++ b/nis/nis_callback.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_checkpoint.c b/nis/nis_checkpoint.c
index f225fd559a..f33c4cd125 100644
--- a/nis/nis_checkpoint.c
+++ b/nis/nis_checkpoint.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_clone_dir.c b/nis/nis_clone_dir.c
index 76a45a093f..09eb29f183 100644
--- a/nis/nis_clone_dir.c
+++ b/nis/nis_clone_dir.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_clone_obj.c b/nis/nis_clone_obj.c
index c6304d24cc..e3b32de6b8 100644
--- a/nis/nis_clone_obj.c
+++ b/nis/nis_clone_obj.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_clone_res.c b/nis/nis_clone_res.c
index 9eddd03d6d..c6a75deb6e 100644
--- a/nis/nis_clone_res.c
+++ b/nis/nis_clone_res.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_creategroup.c b/nis/nis_creategroup.c
index 3106576b3c..a12f563034 100644
--- a/nis/nis_creategroup.c
+++ b/nis/nis_creategroup.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_defaults.c b/nis/nis_defaults.c
index 76e13d45c0..afc6391721 100644
--- a/nis/nis_defaults.c
+++ b/nis/nis_defaults.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_destroygroup.c b/nis/nis_destroygroup.c
index c7c38b594d..7120668104 100644
--- a/nis/nis_destroygroup.c
+++ b/nis/nis_destroygroup.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_domain_of.c b/nis/nis_domain_of.c
index ca2f347f06..6273893822 100644
--- a/nis/nis_domain_of.c
+++ b/nis/nis_domain_of.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_domain_of_r.c b/nis/nis_domain_of_r.c
index 493912cbd6..0fbf3b7087 100644
--- a/nis/nis_domain_of_r.c
+++ b/nis/nis_domain_of_r.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_error.c b/nis/nis_error.c
index 7d2825e067..0283691298 100644
--- a/nis/nis_error.c
+++ b/nis/nis_error.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_file.c b/nis/nis_file.c
index 162dcc78cb..2e202ff713 100644
--- a/nis/nis_file.c
+++ b/nis/nis_file.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_findserv.c b/nis/nis_findserv.c
index e1058755f4..7fbcf3bd77 100644
--- a/nis/nis_findserv.c
+++ b/nis/nis_findserv.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_free.c b/nis/nis_free.c
index 74836306da..14055a2078 100644
--- a/nis/nis_free.c
+++ b/nis/nis_free.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_getservlist.c b/nis/nis_getservlist.c
index 5a932f9e42..55db935778 100644
--- a/nis/nis_getservlist.c
+++ b/nis/nis_getservlist.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_intern.h b/nis/nis_intern.h
index aace185e8f..2bee23f563 100644
--- a/nis/nis_intern.h
+++ b/nis/nis_intern.h
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_ismember.c b/nis/nis_ismember.c
index 233e999ea8..c845c441ca 100644
--- a/nis/nis_ismember.c
+++ b/nis/nis_ismember.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_local_names.c b/nis/nis_local_names.c
index 218764f32e..d76fb69078 100644
--- a/nis/nis_local_names.c
+++ b/nis/nis_local_names.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_lookup.c b/nis/nis_lookup.c
index ff44a04375..e6ad5f4e1b 100644
--- a/nis/nis_lookup.c
+++ b/nis/nis_lookup.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 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/nis/nis_mkdir.c b/nis/nis_mkdir.c
index 389c9b2621..2647420594 100644
--- a/nis/nis_mkdir.c
+++ b/nis/nis_mkdir.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_modify.c b/nis/nis_modify.c
index 4d61a92418..868df948f7 100644
--- a/nis/nis_modify.c
+++ b/nis/nis_modify.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 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/nis/nis_ping.c b/nis/nis_ping.c
index 8d9ba819ed..55c349c45a 100644
--- a/nis/nis_ping.c
+++ b/nis/nis_ping.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_print.c b/nis/nis_print.c
index 6491a7d854..8afe56d671 100644
--- a/nis/nis_print.c
+++ b/nis/nis_print.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_print_group_entry.c b/nis/nis_print_group_entry.c
index b5cdec4bc0..5f16e0b3d2 100644
--- a/nis/nis_print_group_entry.c
+++ b/nis/nis_print_group_entry.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_remove.c b/nis/nis_remove.c
index 493f544509..28573d0157 100644
--- a/nis/nis_remove.c
+++ b/nis/nis_remove.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@uni-paderborn.de>, 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/nis/nis_removemember.c b/nis/nis_removemember.c
index f25394c041..42a78f5cfc 100644
--- a/nis/nis_removemember.c
+++ b/nis/nis_removemember.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_rmdir.c b/nis/nis_rmdir.c
index 722b123752..dd4080ae62 100644
--- a/nis/nis_rmdir.c
+++ b/nis/nis_rmdir.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_server.c b/nis/nis_server.c
index 877f3e0128..28080d4988 100644
--- a/nis/nis_server.c
+++ b/nis/nis_server.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_subr.c b/nis/nis_subr.c
index 6784fc353f..4209b4bbfe 100644
--- a/nis/nis_subr.c
+++ b/nis/nis_subr.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_table.c b/nis/nis_table.c
index ec313d54b4..d82aeefd97 100644
--- a/nis/nis_table.c
+++ b/nis/nis_table.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_util.c b/nis/nis_util.c
index d8d0bfbcdb..918aeb2179 100644
--- a/nis/nis_util.c
+++ b/nis/nis_util.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/nis_verifygroup.c b/nis/nis_verifygroup.c
index 28ff2fd21a..2a7241fae3 100644
--- a/nis/nis_verifygroup.c
+++ b/nis/nis_verifygroup.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_xdr.c b/nis/nis_xdr.c
index 229aa522b5..b8828fe9be 100644
--- a/nis/nis_xdr.c
+++ b/nis/nis_xdr.c
@@ -1,6 +1,5 @@
 /* Copyright (c) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 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/nis/nis_xdr.h b/nis/nis_xdr.h
index 2871bb68bf..a6e8378980 100644
--- a/nis/nis_xdr.h
+++ b/nis/nis_xdr.h
@@ -1,6 +1,5 @@
 /* Copyright (c) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
 
    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/nis/rpcsvc/nislib.h b/nis/rpcsvc/nislib.h
index 14d5bf4980..34aae5ba17 100644
--- a/nis/rpcsvc/nislib.h
+++ b/nis/rpcsvc/nislib.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/rpcsvc/ypclnt.h b/nis/rpcsvc/ypclnt.h
index fd54950343..fd26abfba8 100644
--- a/nis/rpcsvc/ypclnt.h
+++ b/nis/rpcsvc/ypclnt.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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/nis/ypclnt.c b/nis/ypclnt.c
index db1a9c6856..1622090f33 100644
--- a/nis/ypclnt.c
+++ b/nis/ypclnt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Thorsten Kukuk <kukuk@suse.de>, 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