rspec/rspec-expectations — pull request #601 by myronmarston (2014-07-10 04:53:12+00:00)
Title: Alias corrected constant name to old misspelling.

The misspelled version was released in 3.0. Removing
it in 3.x releases would be a SemVer violation, so we’ll
provide an alias.

This is a follow up to #563.