am 78617a08: Merge changes Id25cdef0,I80685cdc,I929dddc7

* commit '78617a0875ccf5662dc69a6fbcc72a7a39ab42a3':
  logd: Add SCHED_BATCH to reduce priority
  logd: Adjust to match defacto coding style
  logd: prune more aggressively when over the top