update benz (suppress more warnings)
update benz (suppress more warnings)

leavesbnw/picrin,omasanori/picrin,picrin-scheme/picrin,koba-e964/picrin,picrin-scheme/picrin,ktakashi/picrin,koba-e964/picrin,omasanori/picrin,dcurrie/picrin,koba-e964/picrin,dcurrie/picrin,leavesbnw/picrin,ktakashi/picrin,leavesbnw/picrin,ktakashi/picrin