exp/locale/collate: Added test flag to maketables tool for comparing newly against previously generated tables.
exp/locale/collate: Added test flag to maketables tool for comparing newly
against previously generated tables.

R=r
CC=golang-dev
http://codereview.appspot.com/6441098

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang