switches to support selecting files by time of modification.
Special thanks to: Steven M. Bellovin, Rich $alz, and Jim Berets,
authors of the public-domain getdate.y date-parsing code.
synonym for --format. Update the man page to reflect this. While
I'm here, change the man page to document "tar" rather than "bsdtar,"
update some comments about -l compatibility and fix a few grammar nits.
For -l, upset everyone by breaking it. Specifically, -l now produces
a lengthy error message that suggests --check-links (POSIX -l) or
--one-file-system (GNU -l) instead. However, if POSIXLY_CORRECT is set,
use the POSIX interpretation.
For -o, please everyone by making it work both ways:
* -xo uses POSIX behavior
* -co uses "almost GNU" behavior (as close as we can get until
libarchive implements a true V7 tar format)
This requires some non-trivial surgery to the options parsing.
While here, let people who only have getopt() access long options
through the -W longopt=value convention.
--exclude='pattern'.
I should have added this a long time ago, since it's so useful for testing.
In particular, it allows me to select a few entries from a troublesome
archive so that I can easily focus my debugging efforts:
bsdtar -czf new.tgz --include='*foo*' @old.tgz
While I'm here, add a couple of extra sanity-checks to
the argument parsing (reject -j -z, for instance) and
update the docs a bit.
Requested by: most everyone ;-)
