Wed, 20 May 1998 18:56:36 +0200 added is_stale;
wenzelm [Wed, 20 May 1998 18:56:36 +0200] rev 4951
added is_stale;
(0) -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip