Automate some review style checking.

BUG=None
TEST=CQ passes

Change-Id: I20b1d853a489cf69f83776896707b111ead92609
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/initramfs/+/4247570


Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>