*use ASSERT macro instead of regular assert for better output.

--HG--
branch : trunk

src/server/game/Globals/ObjectMgr.cpp

@@ -8994,7 +8994,7 @@ void ObjectMgr::RemoveGMTicket(GM_Ticket *ticket, int64 source, bool permanently
 void ObjectMgr::RemoveGMTicket(uint64 ticketGuid, int64 source, bool permanently)
 {
     GM_Ticket *ticket = GetGMTicket(ticketGuid);
-    assert(ticket);
+    ASSERT(ticket);
     RemoveGMTicket(ticket, source, permanently);
 }