K 10 svn:author V 6 marcel K 8 svn:date V 27 2014-06-28T04:18:55.960008Z K 7 svn:log V 345 Add option -y for unit testing. When unit_testing is in effect, fields that have different values for each run, such as UUIDs and timestamps, will have a synthesized value. This allows us to compare images against a known baseline without fails negatives. Add mkimg_uuid() that wraps uuidgen() and provides synthesized values for unit testing. END