let the printer output proc objects and unknown values
let the printer output proc objects and unknown values

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