[11771] avoid happines overflow in HandlePetAbandon :)

[Vinolentus]

diff --git a/src/game/PetHandler.cpp b/src/game/PetHandler.cpp
index 3f5a0d9..79b7ecf 100644
--- a/src/game/PetHandler.cpp
+++ b/src/game/PetHandler.cpp
@@ -399,7 +399,7 @@ void WorldSession::HandlePetAbandon(WorldPacket& recv_data)
            if(pet->GetObjectGuid() == GetPlayer()->GetPetGuid())
            {
                uint32 feelty = pet->GetPower(POWER_HAPPINESS);
-                pet->SetPower(POWER_HAPPINESS, (feelty - 50000) > 0 ? (feelty - 50000) : 0);
+                pet->SetPower(POWER_HAPPINESS, feelty > 50000 ? feelty - 50000 : 0);
            }

            GetPlayer()->RemovePet(PET_SAVE_AS_DELETED);

[VladimirMangos]

In fact better use: pet->ModifyPower(POWER_HAPPINESS, -50000);

But nice catch of problem code.

With this change in [11771]. Thank you