rspec/rspec-expectations — pull request #204 by halostatue (2013-02-09 15:00:09+00:00)
Title: Limit diff-lcs to 1.x series only

I have some experimental code that I am working with that may change the
Diff::LCS interface in version 2.0 (whenever that drops). I would like
to encourage the adoption of the (currently bug-free) 1.2 release as
much as possible, but I don't want to cause other problems if the future
release changes.