packagebrowserimport("errors""os/exec")varerrNoXdgOpen=errors.New("xdg-open: command not found - install xdg-utils from ports(8)")funcopenBrowser(urlstring)error{err:=runCmd("xdg-open",url)ife,ok:=err.(*exec.Error);ok&&e.Err==exec.ErrNotFound{returnerrNoXdgOpen}returnerr}