The daemon() function offers a --check option, which has broken
parsing on one of it's two forms:

            --check=?*)
!                  base=${1#--check=}
!                  gotbase="yes"
                   shift
                   ;;
--- 93,97 ----
                   ;;
            --check=?*)
!                  base=${1#--user=}
                   shift
                   ;;

it also seems to not work, but fixing the parsing is the first step.