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/nptl/bits/pthreadtypes-arch.h b/sysdeps/x86/nptl/bits/pthreadtypes-arch.h
index 4ebc4f9748..dd06d6753e 100644
--- a/sysdeps/x86/nptl/bits/pthreadtypes-arch.h
+++ b/sysdeps/x86/nptl/bits/pthreadtypes-arch.h
@@ -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/nptl/bits/struct_mutex.h b/sysdeps/x86/nptl/bits/struct_mutex.h
index f837e7a1b9..216127858a 100644
--- a/sysdeps/x86/nptl/bits/struct_mutex.h
+++ b/sysdeps/x86/nptl/bits/struct_mutex.h
@@ -1,5 +1,5 @@
 /* x86 internal mutex struct definitions.
-   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/sysdeps/x86/nptl/bits/struct_rwlock.h b/sysdeps/x86/nptl/bits/struct_rwlock.h
index cd5743eeba..a665d0a3e5 100644
--- a/sysdeps/x86/nptl/bits/struct_rwlock.h
+++ b/sysdeps/x86/nptl/bits/struct_rwlock.h
@@ -1,5 +1,5 @@
 /* x86 internal rwlock struct definitions.
-   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.
 
diff --git a/sysdeps/x86/nptl/pthreaddef.h b/sysdeps/x86/nptl/pthreaddef.h
index ff353808ff..63fdbcb27c 100644
--- a/sysdeps/x86/nptl/pthreaddef.h
+++ b/sysdeps/x86/nptl/pthreaddef.h
@@ -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/nptl/thread_pointer.h b/sysdeps/x86/nptl/thread_pointer.h
index 6b71b6f7e1..3502ab4d08 100644
--- a/sysdeps/x86/nptl/thread_pointer.h
+++ b/sysdeps/x86/nptl/thread_pointer.h
@@ -1,5 +1,5 @@
 /* __thread_pointer definition.  x86 version.
-   Copyright (C) 2021 Free Software Foundation, Inc.
+   Copyright (C) 2021-2022 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/nptl/tls-setup.h b/sysdeps/x86/nptl/tls-setup.h
index d922439dd7..59ecdf47cd 100644
--- a/sysdeps/x86/nptl/tls-setup.h
+++ b/sysdeps/x86/nptl/tls-setup.h
@@ -1,5 +1,5 @@
 /* Definitions to set up thread-local data.  x86 version.
-   Copyright (C) 2018-2021 Free Software Foundation, Inc.
+   Copyright (C) 2018-2022 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