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

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



Change-Id: I2b55a7782acc1d4533e4c5b26b20f7928192316f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>