[Python-checkins] [python/cpython] b24def: Update traceback.rst

[GitHub]

  Branch: refs/heads/zhangyangyu-traceback-doc
  Home:   https://github.com/python/cpython
  Commit: b24deffe3a8ff620538a5bdbc827cc7eca581bba
      https://github.com/python/cpython/commit/b24deffe3a8ff620538a5bdbc827cc7eca581bba
  Author: Xiang Zhang <angwerzx at 126.com>
  Date:   2017-07-12 (Wed, 12 Jul 2017)

  Changed paths:
    M Doc/library/traceback.rst

  Log Message:
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  Update traceback.rst