gfs2: Fix a harmless typo

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>

fs/gfs2/trans.c

@@ -145,7 +145,7 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl,
  *
  * This is used in two distinct cases:
  * i) In ordered write mode
- *    We put the data buffer on a list so that we can ensure that its
+ *    We put the data buffer on a list so that we can ensure that it's
  *    synced to disk at the right time
  * ii) In journaled data mode
  *    We need to journal the data block in the same way as metadata in