[Checkins] [zopefoundation/RestrictedPython] 6e7a2c: fix a missing quote in appveyor config

[GitHub]

  Branch: refs/heads/fix_lint_tox
  Home:   https://github.com/zopefoundation/RestrictedPython
  Commit: 6e7a2c0e0df4b317f3374571eb93878f9894f1cf
      https://github.com/zopefoundation/RestrictedPython/commit/6e7a2c0e0df4b317f3374571eb93878f9894f1cf
  Author: Alexander Loechel <Alexander.Loechel at lmu.de>
  Date:   2018-11-07 (Wed, 07 Nov 2018)

  Changed paths:
    M appveyor.yml

  Log Message:
  -----------
  fix a missing quote in appveyor config



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