tweak environment variable in script ENABLE_STUNNEL_AMAZON_RDS_FIX
tweak environment variable in script
ENABLE_STUNNEL_AMAZON_RDS_FIX

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