Make file paths in config_test OS agnostic
Make file paths in config_test OS agnostic

yeah-right/cli,arvidsaur/cli,lcowell/cli,arvidsaur/cli,arvidsaur/cli,exercism/cli,Tonkpils/cli,zabawaba99/cli,Tonkpils/cli,yeah-right/cli,neslom/cli,neslom/cli,neslom/cli,zabawaba99/cli,zabawaba99/cli,yeah-right/cli,lcowell/cli,lcowell/cli,Tonkpils/cli,exercism/cli