Make android::base::Basename() safe. am: 657800047a

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/libbase/+/18599454

Change-Id: I364d3ae751144a81d8900efb3e95da491e686e92
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>