build: split version and release in configure

build: split version and release in configure

Update configure.ac to separate Version from Release if there is
a '-' in version.h::E2FSPROGS_VERSION (e.g. "1.46.6-rc1").
Otherwise, the '-' in the version can make RPM building unhappy.

Simplify the generation of E2FSPROGS_VERESION, E2FSPROGS_DATE and
E2FSPROGS_DAY to avoid multiple grep/awk/sed/tr stages.

Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Link: https://lore.kernel.org/r/1683694677-9366-1-git-send-email-adilger@dilger.ca
Signed-off-by: Theodore Ts'o <tytso@mit.edu>