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.
gtkdocize --version (return code: 0)
gtkdocize (gtk-doc) 1.25
gtkdocize --help (return code: 0)
usage: gtkdocize [ --copy ] [ --docdir DIR ] [ --flavour {legacy|legacy-flat|no-tmpl|no-tmpl-flat} ] [ --srcdir DIR ]