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.
avahi-set-host-name --version (return code: 0)
avahi-set-host-name --help (return code: 0)
avahi-set-host-name [options] <new host name>
-h --help Show this help
-V --version Show version
-v --verbose Enable verbose mode