jack_server_control --version (return code: 0)
jack_server_control: unrecognized option '--version'
usage: jack_server_control
[ --driver OR -d driver_name ]
[ --client OR -c client_name ]
jack_server_control --help (return code: 0)
jack_server_control: unrecognized option '--help'
usage: jack_server_control
[ --driver OR -d driver_name ]
[ --client OR -c client_name ]