Only log the entire summary proto when confirm is false.
Only log the entire summary proto when confirm is false.

Currently we are spamming our logs with the full content of every dashboard's summary every update loop.

GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid,GoogleCloudPlatform/testgrid