gfs2: Some whitespace cleanups

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

fs/gfs2/file.c

@@ -933,6 +933,7 @@ out:
 	brelse(dibh);
 	return error;
 }
+
 /**
  * calc_max_reserv() - Reverse of write_calc_reserv. Given a number of
  *                     blocks, determine how many bytes can be written.