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

11 files changed, 11 insertions, 11 deletions

diff --git a/sysdeps/riscv/rv64/rvd/s_ceil.c b/sysdeps/riscv/rv64/rvd/s_ceil.c
index 32a28bad9b..98b5a6ff71 100644
--- a/sysdeps/riscv/rv64/rvd/s_ceil.c
+++ b/sysdeps/riscv/rv64/rvd/s_ceil.c
@@ -1,5 +1,5 @@
 /* ceil().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_floor.c b/sysdeps/riscv/rv64/rvd/s_floor.c
index 6b130485f9..68d8434d99 100644
--- a/sysdeps/riscv/rv64/rvd/s_floor.c
+++ b/sysdeps/riscv/rv64/rvd/s_floor.c
@@ -1,5 +1,5 @@
 /* floor().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_llrint.c b/sysdeps/riscv/rv64/rvd/s_llrint.c
index 66dd99c429..087f468d12 100644
--- a/sysdeps/riscv/rv64/rvd/s_llrint.c
+++ b/sysdeps/riscv/rv64/rvd/s_llrint.c
@@ -1,5 +1,5 @@
 /* llrint().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_llround.c b/sysdeps/riscv/rv64/rvd/s_llround.c
index b6b5c0b9b5..bc45401918 100644
--- a/sysdeps/riscv/rv64/rvd/s_llround.c
+++ b/sysdeps/riscv/rv64/rvd/s_llround.c
@@ -1,5 +1,5 @@
 /* llround().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_lrint.c b/sysdeps/riscv/rv64/rvd/s_lrint.c
index e66e057b06..64bf72ec02 100644
--- a/sysdeps/riscv/rv64/rvd/s_lrint.c
+++ b/sysdeps/riscv/rv64/rvd/s_lrint.c
@@ -1,5 +1,5 @@
 /* lrint().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_lround.c b/sysdeps/riscv/rv64/rvd/s_lround.c
index a136344235..1b55d99a0e 100644
--- a/sysdeps/riscv/rv64/rvd/s_lround.c
+++ b/sysdeps/riscv/rv64/rvd/s_lround.c
@@ -1,5 +1,5 @@
 /* llround().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_nearbyint.c b/sysdeps/riscv/rv64/rvd/s_nearbyint.c
index 74953bb3f3..f1171b8605 100644
--- a/sysdeps/riscv/rv64/rvd/s_nearbyint.c
+++ b/sysdeps/riscv/rv64/rvd/s_nearbyint.c
@@ -1,5 +1,5 @@
 /* nearbyint().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_rint.c b/sysdeps/riscv/rv64/rvd/s_rint.c
index 7dceeb8fd5..44c64657be 100644
--- a/sysdeps/riscv/rv64/rvd/s_rint.c
+++ b/sysdeps/riscv/rv64/rvd/s_rint.c
@@ -1,5 +1,5 @@
 /* rint().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_round.c b/sysdeps/riscv/rv64/rvd/s_round.c
index f7c57943fb..e2ecac1526 100644
--- a/sysdeps/riscv/rv64/rvd/s_round.c
+++ b/sysdeps/riscv/rv64/rvd/s_round.c
@@ -1,5 +1,5 @@
 /* round().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_roundeven.c b/sysdeps/riscv/rv64/rvd/s_roundeven.c
index 02dd0f7a9a..46ab188cba 100644
--- a/sysdeps/riscv/rv64/rvd/s_roundeven.c
+++ b/sysdeps/riscv/rv64/rvd/s_roundeven.c
@@ -1,5 +1,5 @@
 /* Round to nearest integer value, rounding halfway cases to even.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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/riscv/rv64/rvd/s_trunc.c b/sysdeps/riscv/rv64/rvd/s_trunc.c
index 930c860edf..3561dcfb26 100644
--- a/sysdeps/riscv/rv64/rvd/s_trunc.c
+++ b/sysdeps/riscv/rv64/rvd/s_trunc.c
@@ -1,5 +1,5 @@
 /* trunc().  RISC-V version.
-   Copyright (C) 2017-2021 Free Software Foundation, Inc.
+   Copyright (C) 2017-2022 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