Merge "libbinder: document not to use TextOutput" am: ad222537f8 am: d867d57588 am: fedf5d91f3 am: 58c1391dfb am: 851923bcea

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1362677

Change-Id: I336ab2ded002df4f1de9c9f5645f3fcf0583b2c8