[Mailmunge] Logging

[postfix at ptld.com]

> If you go the "hack the source" route, you can override the log
> method in your filter and only selectively call
> $self->SUPER::log(...) for the messages you want logged.

I need more information to point me in the right direction. Is it all 
done in perl and not C? I tried grepping for 'Bouncing because filter 
instructed us to' and did not find anything in the perl files so i 
assumed its being done in C. Where does that message come from?

Which sub would i override in Filter? Filter::log()? I tried over riding 
that in mailmunge-filter.pl and it didn't have any effect that Bouncing 
message from being logged. Or are you saying i would need to modify C 
code before building mailmunge on my system?