[docs] [issue15561] update subprocess docs to reference io.TextIOWrapper

Chris Jerdonek added the comment: Andrew, here is the new patch for 3.2. 3.3 will come shortly after. ---------- Added file: http://bugs.python.org/file26783/issue-15561-3-branch-32.patch _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue15561> _______________________________________