Update test comment. am: 0d01bbdfe4 am: 649fdeb325 am: 18363846d7 am: 6ef385d5f7

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/1421852

Change-Id: I9f09fa6f0953a6c5f7ba361c1b492af0a3d3f578