rails/rails — pull request #18274 by rajcybage (2014-12-31 10:24:18+00:00)
Title: Fix spell life cycle on activejob docs 

it should be life cycle as we did

https://github.com/rails/rails/blob/77029742814741ca7f220703e9f20e935b9d799b/guides/source/active_record_callbacks.md#L6