[Checkins] [zopefoundation/zope.app.wsgi] 38452e: Update changelog

[Marius Gedminas]

  Branch: refs/heads/httpcaller-compat
  Home:   https://github.com/zopefoundation/zope.app.wsgi
  Commit: 38452e83a00550e024f7c96d2eb32430523a1c67
      https://github.com/zopefoundation/zope.app.wsgi/commit/38452e83a00550e024f7c96d2eb32430523a1c67
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2019-06-06 (Thu, 06 Jun 2019)

  Changed paths:
    M CHANGES.rst

  Log Message:
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  Update changelog