Merge "printflags: improve protobuf decode error message" into main am:...

Merge "printflags: improve protobuf decode error message" into main am: dcbe6097 am: 6df36db6 am: 79d173ed am: 3515661d

Original change: https://android-review.googlesource.com/c/platform/build/+/2779288



Change-Id: Idace4aadee6667d0b2b2272d674f03a3b7af9124
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>