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.
fvwm-root -V (return code: 2)
fvwm-root: unable to open display ''
fvwm-root -HELP (return code: 1)
fvwm-root version 2.6.7 with support for: XBM, XPM, PNG, SVG
Usage: fvwm-root [ options ] file
Nothing to do, try again.