rename benz's call/cc to escape in (picrin control)
rename benz's call/cc to escape in (picrin control)

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