Fix docker-entrypoint broke for Other name than "postgres"
Fix docker-entrypoint broke for Other name than "postgres"

denisov-vlad/redash,chriszs/redash,hudl/redash,moritz9/redash,moritz9/redash,getredash/redash,44px/redash,chriszs/redash,alexanderlz/redash,getredash/redash,44px/redash,44px/redash,denisov-vlad/redash,alexanderlz/redash,moritz9/redash,44px/redash,getredash/redash,chriszs/redash,getredash/redash,hudl/redash,denisov-vlad/redash,moritz9/redash,denisov-vlad/redash,hudl/redash,alexanderlz/redash,denisov-vlad/redash,getredash/redash,alexanderlz/redash,chriszs/redash,hudl/redash