removes a php warning
removes a php warning

moshpirit/qvitter,mitchellurgero/Qvitter,GreenLunar/qvitter,hannesmannerheim/qvitter,hannesmannerheim/qvitter,moshpirit/qvitter,netzkombinat/Qvitter,netzkombinat/Qvitter,mitchellurgero/Qvitter,llebegue/qvitter,llebegue/qvitter,GreenLunar/qvitter