[Python-checkins] [python/cpython] 219a3f: Update gitignore from master (#1329)

[GitHub]

  Branch: refs/heads/2.7
  Home:   https://github.com/python/cpython
  Commit: 219a3f991a58765103c4fa89b705906ff1600b7a
      https://github.com/python/cpython/commit/219a3f991a58765103c4fa89b705906ff1600b7a
  Author: Victor Stinner <victor.stinner at gmail.com>
  Date:   2017-04-28 (Fri, 28 Apr 2017)

  Changed paths:
    M .gitignore

  Log Message:
  -----------
  Update gitignore from master (#1329)

Ignore more generated files.