Make ReferenceWithHistory output easier to use am: 6fc3df7e91

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/GeoTZ/+/13462906

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I7e9f9153d8c8d7f4617a5dbc0f6da372c074da6b