thoughtbot/dotfiles — pull request #294 by ericeslinger (2014-08-14 22:38:46+00:00)
Title: \unset QUIET is case sensitive

Seems like \unset QUIET and \unset quiet aren't the same. At least in psql 9.3.5, \unset quiet leaves psql in quiet mode (not reporting things like affected-row counts after an update or delete command).