Conary command line processing approaches the modern era:

[dbc@wallace ~]cvc commit --help
usage: cvc commit

options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit

  Common Options:
    --build-label=LABEL
                        Use build label LABEL as default search loc
...
  Command Options:
    -m MESSAGE, --message=MESSAGE
                        Use MESSAGE to describe why the commit was performed