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

16 files changed, 16 insertions, 16 deletions

diff --git a/nss/nss_files/files-XXX.c b/nss/nss_files/files-XXX.c
index c158a89..656cbc3 100644
--- a/nss/nss_files/files-XXX.c
+++ b/nss/nss_files/files-XXX.c
@@ -1,5 +1,5 @@
 /* Common code for file-based databases in nss_files module.
-   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/nss/nss_files/files-alias.c b/nss/nss_files/files-alias.c
index b87add1..5057213 100644
--- a/nss/nss_files/files-alias.c
+++ b/nss/nss_files/files-alias.c
@@ -1,5 +1,5 @@
 /* Mail alias file parser in nss_files module.
-   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/nss/nss_files/files-ethers.c b/nss/nss_files/files-ethers.c
index 7c2c2b9..d6c79ba 100644
--- a/nss/nss_files/files-ethers.c
+++ b/nss/nss_files/files-ethers.c
@@ -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/nss/nss_files/files-grp.c b/nss/nss_files/files-grp.c
index a716d94..237ede9 100644
--- a/nss/nss_files/files-grp.c
+++ b/nss/nss_files/files-grp.c
@@ -1,5 +1,5 @@
 /* Group file parser in nss_files module.
-   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/nss/nss_files/files-hosts.c b/nss/nss_files/files-hosts.c
index d54d91d..9219ebe 100644
--- a/nss/nss_files/files-hosts.c
+++ b/nss/nss_files/files-hosts.c
@@ -1,5 +1,5 @@
 /* Hosts file parser in nss_files module.
-   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/nss/nss_files/files-init.c b/nss/nss_files/files-init.c
index 18ed288..ed00b99 100644
--- a/nss/nss_files/files-init.c
+++ b/nss/nss_files/files-init.c
@@ -1,5 +1,5 @@
 /* Initialization in nss_files module.
-   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/nss/nss_files/files-initgroups.c b/nss/nss_files/files-initgroups.c
index d221335..595b046 100644
--- a/nss/nss_files/files-initgroups.c
+++ b/nss/nss_files/files-initgroups.c
@@ -1,5 +1,5 @@
 /* Initgroups handling in nss_files module.
-   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/nss/nss_files/files-netgrp.c b/nss/nss_files/files-netgrp.c
index f588fa6..9ef50d4 100644
--- a/nss/nss_files/files-netgrp.c
+++ b/nss/nss_files/files-netgrp.c
@@ -1,5 +1,5 @@
 /* Netgroup file parser in nss_files modules.
-   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/nss/nss_files/files-network.c b/nss/nss_files/files-network.c
index 217ed78..16f88d8 100644
--- a/nss/nss_files/files-network.c
+++ b/nss/nss_files/files-network.c
@@ -1,5 +1,5 @@
 /* Networks file parser in nss_files module.
-   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/nss/nss_files/files-parse.c b/nss/nss_files/files-parse.c
index 997eac5..c90e293 100644
--- a/nss/nss_files/files-parse.c
+++ b/nss/nss_files/files-parse.c
@@ -1,5 +1,5 @@
 /* Common code for file-based database parsers in nss_files module.
-   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/nss/nss_files/files-proto.c b/nss/nss_files/files-proto.c
index 1307269..4856ad9 100644
--- a/nss/nss_files/files-proto.c
+++ b/nss/nss_files/files-proto.c
@@ -1,5 +1,5 @@
 /* Protocols file parser in nss_files module.
-   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/nss/nss_files/files-pwd.c b/nss/nss_files/files-pwd.c
index 5c74c6d..67889b7 100644
--- a/nss/nss_files/files-pwd.c
+++ b/nss/nss_files/files-pwd.c
@@ -1,5 +1,5 @@
 /* User file parser in nss_files module.
-   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/nss/nss_files/files-rpc.c b/nss/nss_files/files-rpc.c
index 3dea8f1..88b8bd6 100644
--- a/nss/nss_files/files-rpc.c
+++ b/nss/nss_files/files-rpc.c
@@ -1,5 +1,5 @@
 /* SunRPC program number file parser in nss_files module.
-   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/nss/nss_files/files-service.c b/nss/nss_files/files-service.c
index a8d83e0..b53e9ce 100644
--- a/nss/nss_files/files-service.c
+++ b/nss/nss_files/files-service.c
@@ -1,5 +1,5 @@
 /* Services file parser in nss_files module.
-   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/nss/nss_files/files-sgrp.c b/nss/nss_files/files-sgrp.c
index 213a408..08bebe0 100644
--- a/nss/nss_files/files-sgrp.c
+++ b/nss/nss_files/files-sgrp.c
@@ -1,5 +1,5 @@
 /* User file parser in nss_files module.
-   Copyright (C) 2009-2021 Free Software Foundation, Inc.
+   Copyright (C) 2009-2022 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/nss/nss_files/files-spwd.c b/nss/nss_files/files-spwd.c
index d031257..ac95a45 100644
--- a/nss/nss_files/files-spwd.c
+++ b/nss/nss_files/files-spwd.c
@@ -1,5 +1,5 @@
 /* User file parser in nss_files module.
-   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