groupon/roll — pull request #5 by bkochendorfer (2014-03-12 15:10:37+00:00)
Title: Explicitly exit 6 when roll failsafe succeeds. 6 for 'f' as in failsafe.

Decided against '2' based on references from : http://www.tldp.org/LDP/abs/html/exitcodes.html