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 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines

6 files changed, 6 insertions, 6 deletions

diff --git a/sysdeps/x86_64/nptl/Makefile b/sysdeps/x86_64/nptl/Makefile
index d4c424f6c2..aaa3eba15d 100644
--- a/sysdeps/x86_64/nptl/Makefile
+++ b/sysdeps/x86_64/nptl/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2021 Free Software Foundation, Inc.
+# Copyright (C) 2002-2022 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/x86_64/nptl/pthread_spin_lock.S b/sysdeps/x86_64/nptl/pthread_spin_lock.S
index bfc1b21aeb..44b837d9db 100644
--- a/sysdeps/x86_64/nptl/pthread_spin_lock.S
+++ b/sysdeps/x86_64/nptl/pthread_spin_lock.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2012-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2012-2022 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/x86_64/nptl/pthread_spin_trylock.S b/sysdeps/x86_64/nptl/pthread_spin_trylock.S
index c990dd11b2..fffdb27dd9 100644
--- a/sysdeps/x86_64/nptl/pthread_spin_trylock.S
+++ b/sysdeps/x86_64/nptl/pthread_spin_trylock.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2022 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/x86_64/nptl/pthread_spin_unlock.S b/sysdeps/x86_64/nptl/pthread_spin_unlock.S
index a719740e5e..7f5670fef9 100644
--- a/sysdeps/x86_64/nptl/pthread_spin_unlock.S
+++ b/sysdeps/x86_64/nptl/pthread_spin_unlock.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2022 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/x86_64/nptl/tcb-access.h b/sysdeps/x86_64/nptl/tcb-access.h
index e4d2d07a9b..bdb9acd898 100644
--- a/sysdeps/x86_64/nptl/tcb-access.h
+++ b/sysdeps/x86_64/nptl/tcb-access.h
@@ -1,5 +1,5 @@
 /* THREAD_* accessors.  x86_64 version.
-   Copyright (C) 2002-2021 Free Software Foundation, Inc.
+   Copyright (C) 2002-2022 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/x86_64/nptl/tls.h b/sysdeps/x86_64/nptl/tls.h
index 91ad21e478..75f8020975 100644
--- a/sysdeps/x86_64/nptl/tls.h
+++ b/sysdeps/x86_64/nptl/tls.h
@@ -1,5 +1,5 @@
 /* Definition for thread-local data handling.  nptl/x86_64 version.
-   Copyright (C) 2002-2021 Free Software Foundation, Inc.
+   Copyright (C) 2002-2022 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