Switch to single intervals for FSF notices,
and consistently put them first.
Update copyright notices for 2024.
* cfg.mk (update-copyright-env): Use UPDATE_COPYRIGHT_FORCE=1,
UPDATE_COPYRIGHT_USE_INTERVALS=2.
* patch.man: Always use \(co, so that update-copyright
updates these dates.
* src/version.c: Correct Larry Wall copyright years.
When a file has already been renamed, make sure it is not renamed back to its
old name. Reported by Guido Draheim.
* src/patch.c (main): Make sure we never rename a file back to its previous
name. Report when a file was renamed already.
* tests/copy-rename: Add "already renamed" test cases.
Since the code is identical when just checking if a utility is present on
the system or not, we can factorize it.
Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
* tests/copy-rename, tests/criss-cross, tests/file-modes,
tests/mixed-patch-types, tests/quoted-filenames: Add missing index lines in the
"dif --git" test cases: We will use some of them for consistency checks soon.
* src/patch.c (main): Generate the "patching file" message here. When
the input and output file name is not he same, include both names in
the message.
* src/inp.c (scan_input): Previously the "patching file" message was
generated here.
* tests/unmodified-files, tests/copy-rename: Update.
* tests/test-lib.sh: Flag tests with missing pre-requirements as
SKIPped instead of PASSed. Do not use GNU diff extensions, but
still require a diff that understands "-u".
* tests: Do not unnecessarily require GNU diff in a lot of tests.
Make the sed utility optional.
