Using Postgres datestyle

I’m having trouble displaying dates with rt2.0.1-release, everything is being listed as ‘Not set’.
This is due to having PGDATESTYLE set to Postgres/European which RT doesn’t seem to know about.
RT/Date.pm looks like the right place to fix this, but before I do, has anybody else done this? Or is there a better fix?

Cheers.

Feargal Reilly,
Systems Administrator,
The CIA.