ref: 4d3579d9e03400cc44fca47638454207c86b9fd2
parent: 9f7256a2c8174fc94b8ceafa13b0a7960083edc1
author: Ori Bernstein <orib@google.com>
date: Wed Jan 16 10:46:24 EST 2013
Comment the purpose of the tests.
Each test now gets a comment describing what it actually checks,
and what it exits with.