[Checkins] [zopefoundation/grokcore.json] 477003: update buildout extends URL

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/grokcore.json
  Commit: 477003f72b797b1e5a60100f25c7f4e6b7b7e4aa
      https://github.com/zopefoundation/grokcore.json/commit/477003f72b797b1e5a60100f25c7f4e6b7b7e4aa
  Author: Jan-Wijbrand Kolman <jkolman at minddistrict.com>
  Date:   2018-01-22 (Mon, 22 Jan 2018)

  Changed paths:
    M buildout.cfg

  Log Message:
  -----------
  update buildout extends URL