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/misc/bits/err-ldbl.h b/misc/bits/err-ldbl.h
index 330e7dd11a..7b1153da90 100644
--- a/misc/bits/err-ldbl.h
+++ b/misc/bits/err-ldbl.h
@@ -1,5 +1,5 @@
 /* Redirections for err.h functions for -mlong-double-64.
-   Copyright (C) 2019-2021 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022 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/misc/bits/error-ldbl.h b/misc/bits/error-ldbl.h
index da46f7cc11..942b05aa08 100644
--- a/misc/bits/error-ldbl.h
+++ b/misc/bits/error-ldbl.h
@@ -1,5 +1,5 @@
 /* Redirections for error.h functions for -mlong-double-64.
-   Copyright (C) 2019-2021 Free Software Foundation, Inc.
+   Copyright (C) 2019-2022 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/misc/bits/error.h b/misc/bits/error.h
index 14735eb89d..73e829a7a2 100644
--- a/misc/bits/error.h
+++ b/misc/bits/error.h
@@ -1,5 +1,5 @@
 /* Specializations for error functions.
-   Copyright (C) 2007-2021 Free Software Foundation, Inc.
+   Copyright (C) 2007-2022 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/misc/bits/select2.h b/misc/bits/select2.h
index a6dfe68538..0353fede8f 100644
--- a/misc/bits/select2.h
+++ b/misc/bits/select2.h
@@ -1,5 +1,5 @@
 /* Checking macros for select functions.
-   Copyright (C) 2011-2021 Free Software Foundation, Inc.
+   Copyright (C) 2011-2022 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/misc/bits/stab.def b/misc/bits/stab.def
index 5c72900bd6..061010435b 100644
--- a/misc/bits/stab.def
+++ b/misc/bits/stab.def
@@ -1,5 +1,5 @@
 /* Table of DBX symbol codes for the GNU system.
-   Copyright (C) 1988, 1997-2021 Free Software Foundation, Inc.
+   Copyright (C) 1988, 1997-2022 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/misc/bits/syslog-ldbl.h b/misc/bits/syslog-ldbl.h
index b6fbb08406..78ca888441 100644
--- a/misc/bits/syslog-ldbl.h
+++ b/misc/bits/syslog-ldbl.h
@@ -1,5 +1,5 @@
 /* -mlong-double-64 compatibility mode for syslog functions.
-   Copyright (C) 2006-2021 Free Software Foundation, Inc.
+   Copyright (C) 2006-2022 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/misc/bits/syslog.h b/misc/bits/syslog.h
index 6f3137a98e..fd30dd3114 100644
--- a/misc/bits/syslog.h
+++ b/misc/bits/syslog.h
@@ -1,5 +1,5 @@
 /* Checking macros for syslog functions.
-   Copyright (C) 2005-2021 Free Software Foundation, Inc.
+   Copyright (C) 2005-2022 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/misc/bits/types/struct_iovec.h b/misc/bits/types/struct_iovec.h
index 89a87b7453..e2cd9b67b0 100644
--- a/misc/bits/types/struct_iovec.h
+++ b/misc/bits/types/struct_iovec.h
@@ -1,5 +1,5 @@
 /* Define struct iovec.
-   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