xfs: shorten struct xfs_scrub_context to struct xfs_scrub

Shorten the name of the online fsck context structure.  Whitespace
damage will be fixed by a subsequent patch.  There are no functional
changes.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
diff --git a/fs/xfs/scrub/agheader_repair.c b/fs/xfs/scrub/agheader_repair.c
index 631940f..24579684 100644
--- a/fs/xfs/scrub/agheader_repair.c
+++ b/fs/xfs/scrub/agheader_repair.c
@@ -29,7 +29,7 @@
 /* Repair the superblock. */
 int
 xrep_superblock(
-	struct xfs_scrub_context	*sc)
+	struct xfs_scrub	*sc)
 {
 	struct xfs_mount		*mp = sc->mp;
 	struct xfs_buf			*bp;