Recommended update for aaa_base

This update for aaa_base fixes the following issues:

- Replace UNICODE double dash with simple ASCII single dash. (boo#954909)
- Use '+' for find's -exec option as this also respects white spaces in files names
and is more like xargs.
- Respect status lines of screen sessions.
This update was imported from the SUSE:SLE-12:Update update project.

Fixed bugs
bnc#954909
suse.de-backup-rc.config (daily cron job) is broken
bnc#960393
Typo in find command from /etc/cron.daily/suse.de-backup-rc.config causes script to fail.
Selected Binaries
openSUSE Build Service is sponsored by