when given base on cmdline, get abspath
when given base on cmdline, get abspath

LucasCabello/anki,eduOS/anki,weihautin/anki,hssm/anki,socialpercon/anki-1,xuewenfei/anki,weihautin/anki,sunclx/anki,Arthaey/anki,go38/anki,abeyer/anki,Stvad/anki,holycrepe/anki,kenjhim/anki,florianjacob/anki,ospalh/libanki3,hssm/anki,jakesyl/ruby-card,jakesyl/ruby-card,subfusc/anki,jkitching/anki