am 504af654: Merge "Rearrange the way SignalCatcher writes logs."

Merge commit '504af654f481ba978bbd2e216b3f05f9dfa55c00' into dalvik-dev

* commit '504af654f481ba978bbd2e216b3f05f9dfa55c00':
  Rearrange the way SignalCatcher writes logs.