Morton, I've just added your translations upstream. Please feel free to join the Mutt Translators mailing list, mutt...@mutt.org, (see also http://www.mutt.org/mail-lists.html).
You can post your updated translations to that list anytime and we will commit them directly upstream. I just happened to see the bug here by chance, but don't peruse the Debian bug tracker that often. -Kevin