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.
plainbox-qml-shell -V (return code: -15)
plainbox-qml-shell -HELP (return code: -15)
usage: plainbox-qml-shell [-h] [--version] [-v] [-D] [-C] [-T LOGGER] [-P]
plainbox-qml-shell: error: unrecognized arguments: -HELP