Wrong encoding in localized monthly reminders

[Lauras]

The character encoding in translated monthly reminder
headers is different from the actual body text
encoding, resulting in garbled diacritics.

For example, Lithuanian reminder is present in the
server in ISO 8859-13, sent out converted to UTF-8, yet
the headers still say
Content-Type: text/plain; charset="iso-8859-13"

A cursory look at mailpasswds script suggests that it
simply forgets to update encoding in headers after
translating text to UTF-8.

Version information:
-bash-3.00# cat /etc/redhat-release
Fedora Core release 3 (Heidelberg)

-bash-3.00# uname -a
Linux aldona 2.6.10-1.770_FC3 #1 Thu Feb 24 14:00:06
EST 2005 i686 i686 i386 GNU/Linux

-bash-3.00# rpm -q mailman
mailman-2.1.5-32.fc3

Thanks,
Laurynas

[http://sourceforge.net/tracker/index.php?func=detail&aid=1175507&group_id=103&atid=100103]