Use unix sockets for PGBOUNCER_URI
Use unix sockets for PGBOUNCER_URI

musicglue/heroku-buildpack-postgresql,heroku/heroku-buildpack-pgbouncer,Yobota/heroku-buildpack-pgbouncer,gregburek/heroku-buildpack-postgresql,rmoorman/heroku-buildpack-pgbouncer,BetterWorks/heroku-buildpack-pgbouncer,agriffis/heroku-buildpack-pgbouncer,realtymaps/heroku-buildpack-pgbouncer,Shyp/heroku-buildpack-pgbouncer