Flipping logic when checking for already upgraded postgresql
requested to merge 2099-ensure-pg-upgrade-reports-ok-if-postgresql-is-already-up-to-date into master
This was erroneosly overwritten by me. We should show green if there is nothing to do.
Previously, would pg-ugprade would print out a red 'Not Ok' if it didn't have to run. This doesn't look like on already upgraded systems where the forced upgrade was running.
Closes #2099 (closed)