newrelic/node-newrelic — pull request #177 by sebastianhoitz (2014-10-14 15:10:33+00:00)
Title: Fix issue with chainable on calls in pg.

EventEmitters `on` method is chainable as documented here: http://nodejs.org/api/events.html#events_emitter_on_event_listener

By not returning the handler you introduce a breaking behavior that other libraries (like SequelizeJS) might rely on.