Correctly set email_from_ name / address in Plone 5

[Nachtalb]

Code copied from p.a.testing version with the email changed from
"noreply@example.com" to "test@localhost" so that tests that depend on that don't
unnecessarily break.

[Nachtalb]

@buchi can you tell me what I am doing wrong that the 5.2 test fail with

Traceback (most recent call last):
  File "bin/test", line 279, in <module>
    '--test-path', '/var/lib/jenkins/zope/eggs/Pillow-6.2.2-py2.7-linux-x86_64.egg',
  File "/var/lib/jenkins/zope/eggs/collective.xmltestreport-2.0.1-py2.7.egg/collective/xmltestreport/runner.py", line 66, in run
    failed = run_internal(defaults, args, script_parts=script_parts)
  File "/var/lib/jenkins/zope/eggs/collective.xmltestreport-2.0.1-py2.7.egg/collective/xmltestreport/runner.py", line 79, in run_internal
    runner.run()
  File "/var/lib/jenkins/zope/eggs/zope.testrunner-5.2-py2.7.egg/zope/testrunner/runner.py", line 191, in run
    self.run_tests()
  File "/var/lib/jenkins/zope/eggs/zope.testrunner-5.2-py2.7.egg/zope/testrunner/runner.py", line 293, in run_tests
    self.skipped, self.import_errors)
  File "/var/lib/jenkins/zope/eggs/zope.testrunner-5.2-py2.7.egg/zope/testrunner/runner.py", line 474, in run_layer
    import_errors)
  File "/var/lib/jenkins/zope/eggs/zope.testrunner-5.2-py2.7.egg/zope/testrunner/runner.py", line 396, in run_tests
    test(result)
  File "/usr/local/python/2.7.16/lib/python2.7/unittest/case.py", line 393, in __call__
    return self.run(*args, **kwds)
  File "/usr/local/python/2.7.16/lib/python2.7/unittest/case.py", line 333, in run
    result.addFailure(self, sys.exc_info())
  File "/var/lib/jenkins/zope/eggs/zope.testrunner-5.2-py2.7.egg/zope/testrunner/runner.py", line 966, in addFailure
    stdout=stdout, stderr=stderr)
TypeError: test_failure() got an unexpected keyword argument 'stdout'