[PATCH] md: Change case of raid level reported in sys/mdX/md/level

I had thought that keeping the reported tail level clearly different
from the module name was a good idea, but I've changed my mind.

'raid5' is better and probably less confusing than 'RAID-5'.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/md/md.c

@@ -1729,7 +1729,7 @@ level_show(mddev_t *mddev, char *page)
 	if (p == NULL && mddev->raid_disks == 0)
 		return 0;
 	if (mddev->level >= 0)
-		return sprintf(page, "RAID-%d\n", mddev->level);
+		return sprintf(page, "raid%d\n", mddev->level);
 	else
 		return sprintf(page, "%s\n", p->name);
 }