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

9 files changed, 9 insertions, 9 deletions

diff --git a/gmon/Makefile b/gmon/Makefile
index 7d63a9dad8..552b7d7751 100644
--- a/gmon/Makefile
+++ b/gmon/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1995-2021 Free Software Foundation, Inc.
+# Copyright (C) 1995-2022 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/gmon/profil.c b/gmon/profil.c
index c16cc4cc95..1daa3ad09a 100644
--- a/gmon/profil.c
+++ b/gmon/profil.c
@@ -1,5 +1,5 @@
 /* Low-level statistical profiling support function.  Stub version.
-   Copyright (C) 1995-2021 Free Software Foundation, Inc.
+   Copyright (C) 1995-2022 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/gmon/sprofil.c b/gmon/sprofil.c
index b1172663d4..8e73733775 100644
--- a/gmon/sprofil.c
+++ b/gmon/sprofil.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2022 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/gmon/sys/gmon_out.h b/gmon/sys/gmon_out.h
index 3016c6ae52..5f684af9f8 100644
--- a/gmon/sys/gmon_out.h
+++ b/gmon/sys/gmon_out.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/gmon/sys/profil.h b/gmon/sys/profil.h
index 9b13fbc18a..bee10891c2 100644
--- a/gmon/sys/profil.h
+++ b/gmon/sys/profil.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2022 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/gmon/tst-gmon-gprof.sh b/gmon/tst-gmon-gprof.sh
index dc0be02110..b6065ef077 100644
--- a/gmon/tst-gmon-gprof.sh
+++ b/gmon/tst-gmon-gprof.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Check the output of gprof against a carfully crafted binary.
-# Copyright (C) 2017-2021 Free Software Foundation, Inc.
+# Copyright (C) 2017-2022 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/gmon/tst-gmon-static-gprof.sh b/gmon/tst-gmon-static-gprof.sh
index 4cc99c80d0..434a1049e9 100644
--- a/gmon/tst-gmon-static-gprof.sh
+++ b/gmon/tst-gmon-static-gprof.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 # Check the output of gprof against a carfully crafted static binary.
-# Copyright (C) 2017-2021 Free Software Foundation, Inc.
+# Copyright (C) 2017-2022 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/gmon/tst-gmon.c b/gmon/tst-gmon.c
index c04387fb3b..aca5921523 100644
--- a/gmon/tst-gmon.c
+++ b/gmon/tst-gmon.c
@@ -1,5 +1,5 @@
 /* Test program for profiling information collection (_mcount/gprof).
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/gmon/tst-sprofil.c b/gmon/tst-sprofil.c
index eb4274703a..a927e737b2 100644
--- a/gmon/tst-sprofil.c
+++ b/gmon/tst-sprofil.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2001-2021 Free Software Foundation, Inc.
+/* Copyright (C) 2001-2022 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