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

8 files changed, 8 insertions, 8 deletions

diff --git a/sysdeps/arm/armv7/multiarch/ifunc-impl-list.c b/sysdeps/arm/armv7/multiarch/ifunc-impl-list.c
index 772099fc30..eca4511d9b 100644
--- a/sysdeps/arm/armv7/multiarch/ifunc-impl-list.c
+++ b/sysdeps/arm/armv7/multiarch/ifunc-impl-list.c
@@ -1,5 +1,5 @@
 /* Enumerate available IFUNC implementations of a function.  ARM version.
-   Copyright (C) 2013-2020 Free Software Foundation, Inc.
+   Copyright (C) 2013-2021 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/arm/armv7/multiarch/ifunc-memchr.h b/sysdeps/arm/armv7/multiarch/ifunc-memchr.h
index e52aa44c38..4d10210a8f 100644
--- a/sysdeps/arm/armv7/multiarch/ifunc-memchr.h
+++ b/sysdeps/arm/armv7/multiarch/ifunc-memchr.h
@@ -1,5 +1,5 @@
 /* Common definition for memchr resolver.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/arm/armv7/multiarch/ifunc-memcpy.h b/sysdeps/arm/armv7/multiarch/ifunc-memcpy.h
index 5d459fb200..6fc2ce424e 100644
--- a/sysdeps/arm/armv7/multiarch/ifunc-memcpy.h
+++ b/sysdeps/arm/armv7/multiarch/ifunc-memcpy.h
@@ -1,5 +1,5 @@
 /* Common definition for memcpy resolver.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/arm/armv7/multiarch/memchr.c b/sysdeps/arm/armv7/multiarch/memchr.c
index b7f9a0f209..02e107fbc9 100644
--- a/sysdeps/arm/armv7/multiarch/memchr.c
+++ b/sysdeps/arm/armv7/multiarch/memchr.c
@@ -1,6 +1,6 @@
 /* Multiple versions of memchr.
    All versions must be listed in ifunc-impl-list.c.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/arm/armv7/multiarch/memchr_neon.S b/sysdeps/arm/armv7/multiarch/memchr_neon.S
index eb161a5dbe..c655ecb49c 100644
--- a/sysdeps/arm/armv7/multiarch/memchr_neon.S
+++ b/sysdeps/arm/armv7/multiarch/memchr_neon.S
@@ -1,5 +1,5 @@
 /* memchr implemented using NEON.
-   Copyright (C) 2011-2020 Free Software Foundation, Inc.
+   Copyright (C) 2011-2021 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/arm/armv7/multiarch/memcpy.c b/sysdeps/arm/armv7/multiarch/memcpy.c
index 3e33e3eac9..11ab5b0312 100644
--- a/sysdeps/arm/armv7/multiarch/memcpy.c
+++ b/sysdeps/arm/armv7/multiarch/memcpy.c
@@ -1,6 +1,6 @@
 /* Multiple versions of memcpy.
    All versions must be listed in ifunc-impl-list.c.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/arm/armv7/multiarch/memcpy_impl.S b/sysdeps/arm/armv7/multiarch/memcpy_impl.S
index 379bb56fc9..ee562e89af 100644
--- a/sysdeps/arm/armv7/multiarch/memcpy_impl.S
+++ b/sysdeps/arm/armv7/multiarch/memcpy_impl.S
@@ -1,5 +1,5 @@
 /* NEON/VFP/ARM version of memcpy optimized for Cortex-A15.
-   Copyright (C) 2013-2020 Free Software Foundation, Inc.
+   Copyright (C) 2013-2021 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/arm/armv7/strcmp.S b/sysdeps/arm/armv7/strcmp.S
index dc8acea022..b33e313ecd 100644
--- a/sysdeps/arm/armv7/strcmp.S
+++ b/sysdeps/arm/armv7/strcmp.S
@@ -1,5 +1,5 @@
 /* strcmp implementation for ARMv7-A, optimized for Cortex-A15.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   Copyright (C) 2012-2021 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