Make rope golem have some death drops

doc/fixes3-7-0.txt

@@ -824,6 +824,7 @@ if a lit potion of oil on the floor was launched by an explosion and it hit
 	it could trigger an "obj_is_local" panic when end of game cleanup
 	tried to extinguish it as a light source
 place_object() validated coordinates after using them to index level.objects
+killed rope golem may drop leashes and bullwhips
 
 
 Fixes to 3.7.0-x Problems that Were Exposed Via git Repository

src/mon.c

@@ -607,6 +607,13 @@ make_corpse(struct monst *mtmp, unsigned int corpseflags)
         }
         free_mgivenname(mtmp);
         break;
+    case PM_ROPE_GOLEM:
+        num = rn2(3);
+        while (num-- > 0) {
+            obj = mksobj_at(rn2(2) ? LEASH : BULLWHIP, x, y, TRUE, FALSE);
+        }
+        free_mgivenname(mtmp);
+        break;
     case PM_LEATHER_GOLEM:
         num = d(2, 4);
         while (num--)