fix #H12 - unseen wand of striking becoming known

From a bug report:  while hero
was blinded, monster zapped him with a not-yet-discovered wand of striking
and the wand type became discovered.  The report was slightly off; the
described case is already handled correctly.  However, if the zap happened
to hit a door, the wand would incorrectly be made known even when not seen.

doc/fixes34.4

@@ -178,6 +178,7 @@ recognize "mindflayer" as an alternative spelling for "mind flayer"
 treat mattock as blunt object when forcing locks
 restore capability to force locks with wielded statue
 only count successful statue creations against the monster limit in sp_lev.c
+unseen wand of striking zapped by unseen monster became known if it hit a door
 
 
 Platform- and/or Interface-Specific Fixes

src/muse.c

@@ -1,4 +1,4 @@
-/*	SCCS Id: @(#)muse.c	3.5	2005/12/05	*/
+/*	SCCS Id: @(#)muse.c	3.5	2006/01/04	*/
 /*	Copyright (C) 1990 by Ken Arromdee			   */
 /* NetHack may be freely redistributed.  See license for details.  */
 
@@ -1237,7 +1237,7 @@ struct obj *obj;			/* 2nd arg to fhitm/fhito */
 			case WAN_LOCKING:
 			case WAN_STRIKING:
 			    if (doorlock(obj, bhitpos.x, bhitpos.y)) {
-				makeknown(obj->otyp);
+				if (zap_oseen) makeknown(obj->otyp);
 				/* if a shop door gets broken, add it to
 				   the shk's fix list (no cost to player) */
 				if (levl[bhitpos.x][bhitpos.y].doormask ==