Logging improvements am: 8ddadd37a2

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2870750

Change-Id: I3f985ceaab93db39b5803cca6918aae5fda8ab12
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>