Update copyright dates with scripts/update-copyrights

I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master

15 files changed, 15 insertions, 15 deletions

diff --git a/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S b/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S
index 46204cc827..89d5bc4c51 100644
--- a/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S
+++ b/sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S
@@ -1,5 +1,5 @@
 /* longjmp for PowerPC.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/__longjmp.S b/sysdeps/powerpc/powerpc32/fpu/__longjmp.S
index bd9407163f..7719fac754 100644
--- a/sysdeps/powerpc/powerpc32/fpu/__longjmp.S
+++ b/sysdeps/powerpc/powerpc32/fpu/__longjmp.S
@@ -1,5 +1,5 @@
 /* AltiVec/VMX (new) version of __longjmp for PowerPC.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h b/sysdeps/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h
index 21f730e181..a40de86acb 100644
--- a/sysdeps/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h
+++ b/sysdeps/powerpc/powerpc32/fpu/fix-int-fp-convert-zero.h
@@ -1,5 +1,5 @@
 /* Fix for conversion of integer 0 to floating point.  PowerPC version.
-   Copyright (C) 2015-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/fprrest.S b/sysdeps/powerpc/powerpc32/fpu/fprrest.S
index 4bde8e0be7..c10f6aac20 100644
--- a/sysdeps/powerpc/powerpc32/fpu/fprrest.S
+++ b/sysdeps/powerpc/powerpc32/fpu/fprrest.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/fprsave.S b/sysdeps/powerpc/powerpc32/fpu/fprsave.S
index 1772663ef2..d34fb755ab 100644
--- a/sysdeps/powerpc/powerpc32/fpu/fprsave.S
+++ b/sysdeps/powerpc/powerpc32/fpu/fprsave.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
+/* Copyright (C) 2000-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_copysignl.S b/sysdeps/powerpc/powerpc32/fpu/s_copysignl.S
index cd4ecb5cda..2cc42fba2c 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_copysignl.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_copysignl.S
@@ -1,6 +1,6 @@
 /* Copy a sign bit between floating-point values.
    IBM extended format long double version.
-   Copyright (C) 2006-2020 Free Software Foundation, Inc.
+   Copyright (C) 2006-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_fabsl.S b/sysdeps/powerpc/powerpc32/fpu/s_fabsl.S
index bbe18613fb..c8a0dcc46c 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_fabsl.S
+++ b/sysdeps/powerpc/powerpc32/fpu/s_fabsl.S
@@ -1,6 +1,6 @@
 /* Copy a sign bit between floating-point values.
    IBM extended format long double version.
-   Copyright (C) 2004-2020 Free Software Foundation, Inc.
+   Copyright (C) 2004-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_llrint.c b/sysdeps/powerpc/powerpc32/fpu/s_llrint.c
index 137c3ced64..ef1abd0f2d 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_llrint.c
+++ b/sysdeps/powerpc/powerpc32/fpu/s_llrint.c
@@ -1,5 +1,5 @@
 /* Round a double value to a long long in the current rounding mode.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_llrintf.c b/sysdeps/powerpc/powerpc32/fpu/s_llrintf.c
index 888744cc27..f4d653e61e 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_llrintf.c
+++ b/sysdeps/powerpc/powerpc32/fpu/s_llrintf.c
@@ -1,5 +1,5 @@
 /* Round a float value to a long long in the current rounding mode.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_llround.c b/sysdeps/powerpc/powerpc32/fpu/s_llround.c
index 33efe3b61f..2e600736a5 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_llround.c
+++ b/sysdeps/powerpc/powerpc32/fpu/s_llround.c
@@ -1,5 +1,5 @@
 /* Round double value to long long int.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_llroundf.c b/sysdeps/powerpc/powerpc32/fpu/s_llroundf.c
index b20fa89b97..967e43c9ea 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_llroundf.c
+++ b/sysdeps/powerpc/powerpc32/fpu/s_llroundf.c
@@ -1,5 +1,5 @@
 /* Round float value to long long int.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_lrint.c b/sysdeps/powerpc/powerpc32/fpu/s_lrint.c
index afad2e8346..00821b568a 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_lrint.c
+++ b/sysdeps/powerpc/powerpc32/fpu/s_lrint.c
@@ -1,5 +1,5 @@
 /* Round to nearest integer.  PowerPC32 version.
-   Copyright (C) 2019-2020 Free Software Foundation, Inc.
+   Copyright (C) 2019-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/s_lround.c b/sysdeps/powerpc/powerpc32/fpu/s_lround.c
index 765421f085..0b258bb440 100644
--- a/sysdeps/powerpc/powerpc32/fpu/s_lround.c
+++ b/sysdeps/powerpc/powerpc32/fpu/s_lround.c
@@ -1,5 +1,5 @@
 /* lround function.  PowerPC32 version.
-   Copyright (C) 2004-2020 Free Software Foundation, Inc.
+   Copyright (C) 2004-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/setjmp-common.S b/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
index 3d2c269be0..973fc75658 100644
--- a/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
+++ b/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
@@ -1,5 +1,5 @@
 /* setjmp for PowerPC.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    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/powerpc/powerpc32/fpu/setjmp.S b/sysdeps/powerpc/powerpc32/fpu/setjmp.S
index 3a8b06f7d6..8e775d41ef 100644
--- a/sysdeps/powerpc/powerpc32/fpu/setjmp.S
+++ b/sysdeps/powerpc/powerpc32/fpu/setjmp.S
@@ -1,5 +1,5 @@
 /* non altivec (old) version of setjmp for PowerPC.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or