Merge "Suggest developers use -eng builds instead when they lunch -userdebug"...

Merge "Suggest developers use -eng builds instead when they lunch -userdebug" into main am: 9075d322 am: d55332f5 am: 3ba1a2dc

Original change: https://android-review.googlesource.com/c/platform/build/+/2803914



Change-Id: Id815a6899f3bd0fa3f88f8fcf04433ec0913fde8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>