This pulls in some changes to the kitchen command line parser
(specifically it can recognize -luci-system-account now).

R=nodir@chromium.org

Bug:
Change-Id: I52f71a97d662609e8251d50fc81fa686f09f77a0
Reviewed-on: https://chromium-review.googlesource.com/647385Reviewed-by: Daniel Jacques <dnj@chromium.org>
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>