dm-raid: silence compiler warning on rebuilds_per_group.

This doesn't really need to be initialised, but it doesn't hurt,
silences the compiler, and as it is a counter it makes sense for it to
start at zero.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2013-05-09 10:27:49 +10:00
commit 3f6bbd3ffd