rails/rails — pull request #8152 by steveklabnik (2012-11-09 08:26:44+00:00)
Title: Add note about squashing in contributor guide.

We tell people how to do this all the time in the Issues tracker,
so now we can just point them here.

This is a first commit pairing by @kytrinyx and I, so @fxn, can you check the authorship and make sure it makes sense?