am cfd002c9: am 428a6d23: am f2521e76: Merge changes I46586cba,I6c500ab5,I2f7d9934

* commit 'cfd002c90d4001bc2370428aa554e6f46110adff':
  Add mknod utility to system/core/toolbox
  Getevent: make sure the monotonic timestamp is displayed; warning cleanup.
  toolbox: Add nohup command