[Checkins] [zopefoundation/DocumentTemplate] 6ca1e9: Fix StringIO import.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/DocumentTemplate
  Commit: 6ca1e9e10f87fbc92025481dfd0bdeb4fe527223
      https://github.com/zopefoundation/DocumentTemplate/commit/6ca1e9e10f87fbc92025481dfd0bdeb4fe527223
  Author: Hanno Schlichting <hanno at hannosch.eu>
  Date:   2017-05-15 (Mon, 15 May 2017)

  Changed paths:
    M src/DocumentTemplate/DT_Try.py

  Log Message:
  -----------
  Fix StringIO import.