removed unneeded null arg (as the default value is null anyway)
removed unneeded null arg (as the default value is null anyway)

leotsarev/joinrpg-net,joinrpg/joinrpg-net,joinrpg/joinrpg-net,joinrpg/joinrpg-net,kirillkos/joinrpg-net,leotsarev/joinrpg-net,kirillkos/joinrpg-net,joinrpg/joinrpg-net,leotsarev/joinrpg-net,leotsarev/joinrpg-net