cron/checkdbs produces traceback - buggy french translation

[Gjmurphy]

The following is produced when checkdb expires held messages AND the list
preferred language is 'fr'. Patch which fixes this is attached.

--start--
Traceback (most recent call last):
  File "/usr/local/mailman/cron/checkdbs", line 203, in ?
    main()
  File "/usr/local/mailman/cron/checkdbs", line 107, in main
    text = _(
  File "/usr/local/mailman/Mailman/i18n.py", line 90, in _
    return tns % dict
ValueError: unsupported format character 'a' (0x61) at index 34
--end--

[http://sourceforge.net/tracker/index.php?func=detail&aid=1845459&group_id=103&atid=100103]

[Gjmurphy (gjmurphy)]

Originator: YES

This bug was originally found in Mailman 2.1.9. This bug is still present
in Mailman 2.1.10b3. This patch works with version 2.1.10b3.

[Mark Sapiro (msapiro)]

Originator: NO

I posted your patch to the Mailman-i18n list in December. See
<http://mail.python.org/pipermail/mailman-i18n/2007-December/001532.html>.
I am still hoping to get an updated translation in time for the 2.1.10
final release, but in case I don't, I'm applying the patch to the current
message catalog. The next beta/rc release of 2.1.10 will have it.