dont consume arena in pic_append
dont consume arena in pic_append

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