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: 50b5bcbb am: f1965111

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



Change-Id: Ibf34de762f41576beab21143cb91b0d1b3ad14de
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>