[Mimedefang] Case in-sentitive matching

[Kevin A. McGrail]

> One simple way would be to force the whole match into upper case.  I.e.:
>
>     if (($type eq "text/plain") and
> toupper($entity->head->mime_attr("content-type.charset")) eq
> "WINDOWS-1251") {

Just to clarify in case the recipient doesn't know perl, it's uc() not
toupper().  Me thinks you are tired and have been fraternizing with the
devil aka PHP.

Regards,
KAM