Summary: Line 166 is missing a process.exit() causing the process to stay open forever if anything goes wrong. Making everything use errorAndExit, and making use of the utility function so we don't need to remember when to print e, and when to print e.message. Reviewed By: passy Differential Revision: D15989164 fbshipit-source-id: c683fa07d98fe49283a59b5f8108ef54babc97a3