Merge "Improve am --help wording" into main am: 3b84c2ca31 am: 93e169150d

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2787105

Change-Id: Iacf171565a1e8e9c053bea0dedde14a64909f4e7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>