am 80235ca7: am 6c9d6373: am f216ded9: Merge "docs: clarify usage for adb am component option" into jb-mr1-dev

# Via Android Git Automerger (2) and others
* commit '80235ca788537c9acd133f40066c3c75f3585a2e':
  docs: clarify usage for adb am component option