Show both users if try to connect as "postgres" and "bucardo".
Show both users if try to connect as "postgres" and "bucardo".

Took me an hour to chase down a bad login because I kept telling it to use
user bucardo and it said it could not connect as user "postgres". It was only
when I dug deep enough that I discovered that it was sneakily changing the
username on me. So let's just show both user in the error message.

ezekiel/bucardo,ezekiel/bucardo,ezekiel/bucardo