Mailman update from FreeBSD ports

This is one of those things I always seem to forget in terms of syntax. To do an update on Mailman running with the Postfix MTA on FreeBSD there is a configuration option necessary to set the mail GID properly.

The command is this:

% make MM_GROUPID=mailman

So the whole process looks something like

% mailmanctl stop
% make deinstall
% make MM_GROUPID=mailman
% make reinstall
% mailmanctl start