update-tzdata.py now automatically updates test files since commit b3b4af50. Bug: 34266809 Bug: 65575839 Test: None - documentation only Change-Id: I5b6826e308ad4907e432f29348189af8a2cc26e3 Merged-In: I5b6826e308ad4907e432f29348189af8a2cc26e3 (cherry picked from commit 578391d0)