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

8 files changed, 8 insertions, 8 deletions

diff --git a/catgets/Makefile b/catgets/Makefile
index 215965b..27b30b2 100644
--- a/catgets/Makefile
+++ b/catgets/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1996-2021 Free Software Foundation, Inc.
+# Copyright (C) 1996-2022 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/catgets/catgets.c b/catgets/catgets.c
index 3727100..e65af31 100644
--- a/catgets/catgets.c
+++ b/catgets/catgets.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/catgets/catgetsinfo.h b/catgets/catgetsinfo.h
index 74b40a6..65f14fb 100644
--- a/catgets/catgetsinfo.h
+++ b/catgets/catgetsinfo.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/catgets/gencat.c b/catgets/gencat.c
index d023b05..911d242 100644
--- a/catgets/gencat.c
+++ b/catgets/gencat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    This program is free software; you can redistribute it and/or modify
diff --git a/catgets/nl_types.h b/catgets/nl_types.h
index eb075bd..c486434 100644
--- a/catgets/nl_types.h
+++ b/catgets/nl_types.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/catgets/open_catalog.c b/catgets/open_catalog.c
index 691a1c0..48c2a4b 100644
--- a/catgets/open_catalog.c
+++ b/catgets/open_catalog.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2022 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/catgets/test-gencat.sh b/catgets/test-gencat.sh
index feed737..c96e78d 100755
--- a/catgets/test-gencat.sh
+++ b/catgets/test-gencat.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Test escape character handling in gencat.
-# Copyright (C) 2000-2021 Free Software Foundation, Inc.
+# Copyright (C) 2000-2022 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/catgets/xopen-msg.awk b/catgets/xopen-msg.awk
index f0f3d83..522be23 100644
--- a/catgets/xopen-msg.awk
+++ b/catgets/xopen-msg.awk
@@ -1,5 +1,5 @@
 # xopen-msg.awk - Convert Uniforum style .po file to X/Open style .msg file
-# Copyright (C) 2012-2021 Free Software Foundation, Inc.
+# Copyright (C) 2012-2022 Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by