Merchant Bug and Fix

[Waeric]

Merchants currently have a bug in 3.1.1 where they miss the last item in the list of items to be sold.

zone/client_process.cpp:

case OP_ShopRequest: {

...

for(int x=1; x < database.GetMerchantListNumb(merchantid) && x < 30; x++)

should be:

for(int x=0; x < database.GetMerchantListNumb(merchantid) && x < 29; x++)

...

uint16 item_nr = database.GetMerchantData(merchantid,x);

should be:

uint16 item_nr = database.GetMerchantData(merchantid,x+1);

...

item->equipSlot = x-1; // this needs to be incremented in loop.

should be:

item->equipSlot = x; // this needs to be incremented in loop.