scripts/backup: Fix initialization of $email Mostly harmless in practice, since $email is typically unset. Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
scripts: Use mailx rather than mail, and drop bogus -e
Rename tgz to arc in scripts/backup tgz looks silly when you hack the script to use something other than tar+gzip.
Spelling fix.
A backup script for pre_update_hook.