Needed to not fail with newer `plone.outputfilters` from this PR: https://github.com/plone/plone.outputfilters/pull/49
Comments go through the outputfilters, and the new branch calls `soup.prettify()` from `Beautifulsoup`, leading to more white space.
Sample test failures on Jenkins, see https://jenkins.plone.org/job/plip-plip-image-srcsets-3.8/5/#showFailuresLink
```
'<p>\n Go to http://www.plone.org\n</p>' != '<p>Go to http://www.plone.org</p>'
- <p>
- Go to http://www.plone.org
? ^ ^
+ <p>Go to http://www.plone.org</p>? ^^^ ^^^^
- </p>
File "/srv/python3.8/lib/python3.8/unittest/case.py", line 60, in testPartExecutor
yield
File "/srv/python3.8/lib/python3.8/unittest/case.py", line 676, in run
self._callTestMethod(testMethod)
File "/srv/python3.8/lib/python3.8/unittest/case.py", line 633, in _callTestMethod
method()
File "/home/jenkins/.buildout/eggs/cp38/plone.app.discussion-4.0.0a7-py3.8.egg/plone/app/discussion/tests/test_comment.py", line 180, in test_getText_doesnt_link
self.assertEqual(
File "/srv/python3.8/lib/python3.8/unittest/case.py", line 912, in assertEqual
assertion_func(first, second, msg=msg)
File "/srv/python3.8/lib/python3.8/unittest/case.py", line 1292, in assertMultiLineEqual
self.fail(self._formatMessage(msg, standardMsg))
File "/srv/python3.8/lib/python3.8/unittest/case.py", line 753, in fail
raise self.failureException(msg)
```
