[GFS2/DLM] Fix trailing whitespace

As per Andrew Morton's request, removed trailing whitespace.

Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/acl.c

@@ -181,7 +181,7 @@ int gfs2_check_acl(struct inode *inode, int mask)
 		error = gfs2_check_acl_locked(inode, mask);
 		gfs2_glock_dq_uninit(&i_gh);
 	}
-	
+
 	return error;
 }