Hi Terry,

Thanks for the feedback!

I've just added a blurb to the PR.

Regarding the issue type, even though this is indeed translation-related, I'd lean toward a bug report rather than an enhancement request: the fact that user-provided strings get fed to the localization function by the `argparse` module is contrary to the expected behavior, and thus should qualify as a bug.

However, since this is very minor, I'm totally fine with this being applied only to future versions!

Thanks again!

Kind regards,
Jérémie.