repo-add: backup old database signature too

If you are keeping a copy of the old database, you probably want
to keep a copy of its signature too.  Also, delete the previously
backed-up database signature if no new one is being copied.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions