AlexBaranosky/gui-diff — pull request #12 by rplevy (2013-05-11 20:43:50+00:00)
Title: fix the gui-diff macro and its test

Fix obvious problem with macro version of gui-diff I added,
and improve the test:
1. verify the macroexpansion
2. stub out the called function so it doesn't launch the diff when the test runs.