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.
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>
* src/patch.c (main): Output queued output files only when switching from a git
diff to a non-git diff. This can modify the input file, so make sure to
stat() it again.
* tests/concat-git-diff: Add test case growing a file with a git diff and then
with a non-git diff; without this fix; the result would be truncated.
* src/patch.c (main): Instead of looking at the SHA hashes to detect
concatenated git-style patches, detect when a file to write to is already in
the output queue.
* tests/concat-git-diff: Add create/delete tests.
* src/patch.c (output_file): Create new files immediately. Document why
things are implemented that way.
* tests/concat-git-diff: Fix glitch in test case.
* src/patch.c (main): Remember the "before" SHA1 hashes of git-style patches;
the same patch will always use the same "before" SHA1 for a specific file.
Try to recognize concatenated patches based on that.
* tests/concat-git-diff: New test case.
* tests/Makefile.am (TESTS): Add new test case.
