quizzes/git: Add 'git diff *' questions
authorW. Trevor King <wking@tremily.us>
Wed, 6 Feb 2013 22:08:03 +0000 (17:08 -0500)
committerW. Trevor King <wking@tremily.us>
Wed, 6 Feb 2013 22:21:26 +0000 (17:21 -0500)
commite8124f3cb6803fcdfe15d9e2065d0464c886daf5
treed6cee2dca85d3458e943390d573db3f13072c93e
parent797ecd256a927ca410893bc20011d93df1db4a97
quizzes/git: Add 'git diff *' questions

New questions:
* git diff
* git diff HEAD --
* git diff HEAD -- README
* git diff --cached
quizzes/git.json