[10228] Missing send packet in empty vendor item list case.

Signed-off-by: VladimirMangos <vladimir@getmangos.com>

src/game/ItemHandler.cpp

@@ -744,6 +744,7 @@ void WorldSession::SendListInventory(uint64 vendorguid)
         data << uint64(vendorguid);
         data << uint8(0);                                   // count==0, next will be error code
         data << uint8(0);                                   // "Vendor has no inventory"
+        SendPacket(&data);
         return;
     }