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

12 files changed, 12 insertions, 12 deletions

diff --git a/misc/sys/auxv.h b/misc/sys/auxv.h
index 128cf39..b5ab30a 100644
--- a/misc/sys/auxv.h
+++ b/misc/sys/auxv.h
@@ -1,5 +1,5 @@
 /* Access to the auxiliary vector.
-   Copyright (C) 2012-2021 Free Software Foundation, Inc.
+   Copyright (C) 2012-2022 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/sys/cdefs.h b/misc/sys/cdefs.h
index a05b538..abf13a9 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2022 Free Software Foundation, Inc.
    Copyright The GNU Toolchain Authors.
    This file is part of the GNU C Library.
 
diff --git a/misc/sys/dir.h b/misc/sys/dir.h
index d6a8c25..90e7ce6 100644
--- a/misc/sys/dir.h
+++ b/misc/sys/dir.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/sys/file.h b/misc/sys/file.h
index 2370943..a4de16a 100644
--- a/misc/sys/file.h
+++ b/misc/sys/file.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/sys/ioctl.h b/misc/sys/ioctl.h
index 9945c1e..f880e91 100644
--- a/misc/sys/ioctl.h
+++ b/misc/sys/ioctl.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/sys/mman.h b/misc/sys/mman.h
index 37ac7b3..311d44c 100644
--- a/misc/sys/mman.h
+++ b/misc/sys/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for BSD-style memory management.
-   Copyright (C) 1994-2021 Free Software Foundation, Inc.
+   Copyright (C) 1994-2022 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/sys/param.h b/misc/sys/param.h
index 72fd74d..8f4bacb 100644
--- a/misc/sys/param.h
+++ b/misc/sys/param.h
@@ -1,5 +1,5 @@
 /* Compatibility header for old-style Unix parameters and limits.
-   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/misc/sys/select.h b/misc/sys/select.h
index e9c0e8f..7a27bd9 100644
--- a/misc/sys/select.h
+++ b/misc/sys/select.h
@@ -1,5 +1,5 @@
 /* `fd_set' type and related macros, and `select'/`pselect' declarations.
-   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/misc/sys/single_threaded.h b/misc/sys/single_threaded.h
index 8609c84..191d611 100644
--- a/misc/sys/single_threaded.h
+++ b/misc/sys/single_threaded.h
@@ -1,5 +1,5 @@
 /* Support for single-thread optimizations.
-   Copyright (C) 2020-2021 Free Software Foundation, Inc.
+   Copyright (C) 2020-2022 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/sys/sysmacros.h b/misc/sys/sysmacros.h
index e1b519c..0418206 100644
--- a/misc/sys/sysmacros.h
+++ b/misc/sys/sysmacros.h
@@ -1,5 +1,5 @@
 /* Definitions of macros to access `dev_t' values.
-   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/misc/sys/uio.h b/misc/sys/uio.h
index 08dcb39..27817ab 100644
--- a/misc/sys/uio.h
+++ b/misc/sys/uio.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2022 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/sys/xattr.h b/misc/sys/xattr.h
index a87f676..2d53a38 100644
--- a/misc/sys/xattr.h
+++ b/misc/sys/xattr.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