id: rework id_print()
id: rework id_print()

Fixes #239

efuquen/coreutils,beni55/coreutils,kwantam/coreutils,sshling/coreutils,uutils/coreutils,jbcrail/coreutils,mauricio/coreutils,Gianbaoluo/coreutils,hexsel/coreutils,steveklabnik/coreutils,ebfe/coreutils,Shir0kamii/coreutils,beni55/coreutils,uutils/coreutils,filmor/coreutils,Shtong/coreutils,Heather/coreutils,Gianbaoluo/coreutils,sshling/coreutils,dbrgn/coreutils,kevgeniy/coreutils,uutils/coreutils,filmor/coreutils,silvio/rust-coreutils,polapl/coreutils,dennis/coreutils,dokaptur/coreutils,wimh/coreutils,kball/coreutils,dbrgn/coreutils,dbrgn/coreutils,samfoo/coreutils,bundai223/coreutils,retep998/coreutils,retep998/coreutils,tempbottle/coreutils,keunwoo/coreutils,kball/coreutils,samfoo/coreutils,silvio/rust-coreutils,polapl/coreutils,ebfe/coreutils,Arcterus/coreutils,Heather/coreutils,steveklabnik/coreutils,dennis/coreutils,Shtong/coreutils,Shir0kamii/coreutils,hexsel/coreutils,mauricio/coreutils,jbcrail/coreutils,bundai223/coreutils,kwantam/coreutils,wimh/coreutils,efuquen/coreutils,Arcterus/coreutils,keunwoo/coreutils,kevgeniy/coreutils,tempbottle/coreutils