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.
grep-merges -V (return code: 2)
Usage: grep-merges [options] [string]
grep-merges: error: no such option: --version
grep-merges --HELP (return code: 2)
Usage: grep-merges [options] [string]
grep-merges: error: no such option: --HELP