Deprecate pg_timeout

pg_timeout has been removed from dm-multipath, so deprecate it
from userspace, too.

References: bnc#809726

Signed-off-by: Hannes Reinecke <hare@suse.de>
multipathd: Fixup typo during missing path check

Merge error; interface has changed for SP3.

Signed-off-by: Hannes Reinecke <hare@suse.de>
- Update Changelog.