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/mips/bits/dlfcn.h b/sysdeps/mips/bits/dlfcn.h
index 5cec898de3..61f3536496 100644
--- a/sysdeps/mips/bits/dlfcn.h
+++ b/sysdeps/mips/bits/dlfcn.h
@@ -1,5 +1,5 @@
 /* System dependent definitions for run-time dynamic loading.
-   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/sysdeps/mips/bits/fenv.h b/sysdeps/mips/bits/fenv.h
index 3f31244700..5d9e18fe56 100644
--- a/sysdeps/mips/bits/fenv.h
+++ b/sysdeps/mips/bits/fenv.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1998-2022 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/mips/bits/ipctypes.h b/sysdeps/mips/bits/ipctypes.h
index 30b5cf84ce..c5d7f1e268 100644
--- a/sysdeps/mips/bits/ipctypes.h
+++ b/sysdeps/mips/bits/ipctypes.h
@@ -1,5 +1,5 @@
 /* bits/ipctypes.h -- Define some types used by SysV IPC/MSG/SHM.  MIPS 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/mips/bits/link.h b/sysdeps/mips/bits/link.h
index a0bfa8df85..8a78809f35 100644
--- a/sysdeps/mips/bits/link.h
+++ b/sysdeps/mips/bits/link.h
@@ -1,4 +1,4 @@
-/* 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/sysdeps/mips/bits/setjmp.h b/sysdeps/mips/bits/setjmp.h
index 7f1876cd3f..feb05e2883 100644
--- a/sysdeps/mips/bits/setjmp.h
+++ b/sysdeps/mips/bits/setjmp.h
@@ -1,5 +1,5 @@
 /* Define the machine-dependent type `jmp_buf'.  MIPS version.
-   Copyright (C) 1992-2021 Free Software Foundation, Inc.
+   Copyright (C) 1992-2022 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/mips/bits/wordsize.h b/sysdeps/mips/bits/wordsize.h
index 18ef16c639..e521dc589c 100644
--- a/sysdeps/mips/bits/wordsize.h
+++ b/sysdeps/mips/bits/wordsize.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