Busybox' readline does not support `-e`

Created by: joerg-krause

readlink is used here https://github.com/ronalde/mpd-configure/blob/master/mpd-configure#L583, but Busybox' readline does not implement -e:

readlink: unrecognized option: e
BusyBox v1.27.2 (2018-03-13 17:41:13 CET) multi-call binary.

Usage: readlink [-fnv] FILE

Display the value of a symlink

        -f      Canonicalize by following all symlinks
        -n      Don't add newline
        -v      Verbose
DEBUG mpd-configure *** not a valid symlink `./confs-enabled/*.conf'.