[Python-checkins] [python/cpython] 77f68e: Fix typo in 3.7 whatsnew (#2308)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/python/cpython
  Commit: 77f68e36189437dc293e4c0cef4eae8001f1d4b6
      https://github.com/python/cpython/commit/77f68e36189437dc293e4c0cef4eae8001f1d4b6
  Author: Daniel Porteous <danielporteous1 at gmail.com>
  Date:   2017-06-20 (Tue, 20 Jun 2017)

  Changed paths:
    M Doc/whatsnew/3.7.rst

  Log Message:
  -----------
  Fix typo in 3.7 whatsnew (#2308)