change some function names in cont.c
change some function names in cont.c

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