Explicitly close pipe end when we cease operations... am: 3bed1c0ef8
am: a0a6924749

* commit 'a0a6924749daa93aed6632891dd1f380b41d7abc':
  Explicitly close pipe end when we cease operations...

Change-Id: I61747f58f4a3b24a526ac2b3fb541d9b0ffd43a1