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.
indxbib --version (return code: 0)
GNU indxbib (groff) version 1.22.3
indxbib --help (return code: 0)
usage: indxbib [-vw] [-c file] [-d dir] [-f file] [-h n] [-i XYZ] [-k n]
[-l n] [-n n] [-o base] [-t n] [files...]