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 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master

15 files changed, 15 insertions, 15 deletions

diff --git a/sysdeps/riscv/rv64/rvd/s_ceil.c b/sysdeps/riscv/rv64/rvd/s_ceil.c
index b89e94e8c7..32a28bad9b 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 848b31bc51..6b130485f9 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 1c3bb04ed4..66dd99c429 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 8274baa000..b6b5c0b9b5 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 d9f65a27c5..e66e057b06 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 73e513c783..a136344235 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 a5f289eafb..74953bb3f3 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 4959cf8ebb..7dceeb8fd5 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 b0fa9e06ac..f7c57943fb 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 43e8689c9d..e77d8307d1 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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 556a0c6a92..930c860edf 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) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/rvf/s_llrintf.c b/sysdeps/riscv/rv64/rvf/s_llrintf.c
index 1d0e5d432e..636998dd19 100644
--- a/sysdeps/riscv/rv64/rvf/s_llrintf.c
+++ b/sysdeps/riscv/rv64/rvf/s_llrintf.c
@@ -1,5 +1,5 @@
 /* Round argument to nearest integral value according to current direction.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/rvf/s_llroundf.c b/sysdeps/riscv/rv64/rvf/s_llroundf.c
index 038c83542a..6c70b9b9d0 100644
--- a/sysdeps/riscv/rv64/rvf/s_llroundf.c
+++ b/sysdeps/riscv/rv64/rvf/s_llroundf.c
@@ -1,5 +1,5 @@
 /* Round float value to long long int.  RISC-V version.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/rvf/s_lrintf.c b/sysdeps/riscv/rv64/rvf/s_lrintf.c
index c7c033c3be..e1ce930b4e 100644
--- a/sysdeps/riscv/rv64/rvf/s_lrintf.c
+++ b/sysdeps/riscv/rv64/rvf/s_lrintf.c
@@ -1,5 +1,5 @@
 /* lrintf().  RISC-V version.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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/rvf/s_lroundf.c b/sysdeps/riscv/rv64/rvf/s_lroundf.c
index 76817cadad..72a80bf02e 100644
--- a/sysdeps/riscv/rv64/rvf/s_lroundf.c
+++ b/sysdeps/riscv/rv64/rvf/s_lroundf.c
@@ -1,5 +1,5 @@
 /* lroundf().  RISC-V version.
-   Copyright (C) 2017-2020 Free Software Foundation, Inc.
+   Copyright (C) 2017-2021 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