From time to time there are complaints because people mistakenly feed a
text format dump to pg_restore and get back a somewhat cryptic message
about the file not being a valid archive. It's been suggested that we
should have pg_restore run the file through psql, but that would involve
more work than I at least care to give the problem. However, I think we
should give a nicer message, suggesting the user try feeding the file to
psql instead. The attached small patch does that.
cheers
andrew
