PRESUMBIT: enable signoff_check

The default in pre-upload.py was changed to warn about Signed-Off-By
lines: https://crrev.com/c/1917972.
BRANCH=none
BUG=none
TEST=repo upload --cbr .

Change-Id: Ie54b95251a751134c8824d3720e2fe73ef79fbc9
Signed-off-by: Jett Rink <jettrink@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1926520
Reviewed-by: Joel Kitching <kitching@chromium.org>
1 file changed