mxcl/homebrew — pull request #17117 by urdh (2013-01-16 15:01:46+00:00)
Title: Doctor check for origin

Added checks on doctor.rb for:

* Missing git origin
* git origin not pointing at mxcl/homebrew

Tests use `git config --get remote.origin.url`.
Also added printout of origin to --config.rb.

Fixes mxcl/homebrew#14399.