Fix: segfault on wizmode terrain wish

The new livelogging of wish results caused a segfault when attempting to
handle the results of a wizard mode terrain wish, since a successful
terrain wish returns a nonzero obj which nonetheless is just a dummy
object.  Move the existing check for that further up to skip all the
livelogging stuff entirely, since such wishes will never happen in a
real game and exist purely for debugging purposes.

src/zap.c

@@ -5674,6 +5674,9 @@ makewish(void)
            to retain wishless conduct */
         livelog_printf(LL_WISH, "declined to make a wish");
         return;
+    } else if (otmp == &cg.zeroobj) {
+        /* wizard mode terrain wish: skip livelogging, etc */
+        return;
     }
 
     if (otmp->oartifact) {
@@ -5696,9 +5699,7 @@ makewish(void)
     /* TODO? maybe generate a second event decribing what was received since
        those just echo player's request rather than show actual result */
 
-    if (otmp != &cg.zeroobj) {
+    const char *verb = ((Is_airlevel(&u.uz) || u.uinwater) ? "slip" : "drop"),
-        const char
-            *verb = ((Is_airlevel(&u.uz) || u.uinwater) ? "slip" : "drop"),
                *oops_msg = (u.uswallow
                             ? "Oops!  %s out of your reach!"
                             : (Is_airlevel(&u.uz) || Is_waterlevel(&u.uz)
@@ -5708,11 +5709,9 @@ makewish(void)
                                : "Oops!  %s to the floor!");
 
     /* The(aobjnam()) is safe since otmp is unidentified -dlc */
-        (void) hold_another_object(otmp, oops_msg,
+    (void) hold_another_object(otmp, oops_msg, The(aobjnam(otmp, verb)),
-                                   The(aobjnam(otmp, verb)),
                                (const char *) 0);
     u.ublesscnt += rn1(100, 50); /* the gods take notice */
-    }
 }
 
 /* Fills buf with the appropriate string for this ray.