fix up printf settings Mark the printf style func as such and fix up the resulting warnings. BUG=None TEST=precq passes Change-Id: I8d4cd9ffa697ab91d42017b0a88a426e38d2faf6 Reviewed-on: https://chromium-review.googlesource.com/262673 Trybot-Ready: Mike Frysinger <[email protected]> Commit-Queue: Mike Frysinger <[email protected]> Tested-by: Mike Frysinger <[email protected]> Reviewed-by: Daniel Ehrenberg <[email protected]>