use --no-psqlrc

If you [turn off autocommit](https://github.com/will/dotfiles/blob/master/psqlrc#L8-L9) in your psql rc so that you're always start in a transaction so you are more safe when you connect to remote databases (but with the caveat that if you just hang there you have a long running xact, which has it's own problems), none of the `psql -f` stuff ya'll use to set up databases work, because there is no `COMMIT`. It could either be solved by having the files you -f have COMMIT, or this. I don't have strong opinions either way.