causes/overcommit — pull request #22 by DawidJanczak (2013-10-02 04:53:36+00:00)
Title: Add --no-ext-diff option to git diff.

Hi. I have an external diff set up for Git and the `git diff` in `extract_modified_lines` hangs because of that. It would be lovely to have that `--no-ext-diff` switch there.