Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
cnid_metad -V (return code: 255)
cnid_metad: invalid option -- '-'
cnid_metad (Netatalk 2.2.6)
cnid_metad --help (return code: 0)
cnid_metad: invalid option -- '-'