Merge "Revert "Revert "libbinder_ndk: toString never goes to empty stri...""...

Merge "Revert "Revert "libbinder_ndk: toString never goes to empty stri..."" am: b4507cef am: b498dde0 am: ed681dee

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2320378



Change-Id: Iebfbc2736c93e4461fccc04516fd96242b17c2e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>