test_translated_filenames_in_markdown_links fails because of missing linebreak in markdown

[Daniel Holbach]

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FAIL: test_translated_filenames_in_markdown_links (test_translations.HelpTestCase)
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Traceback (most recent call last):
  File "/home/daniel/dev/apps/help-app/edit-here/tests/test_translations.py", line 31, in test_translated_filenames_in_markdown_links
    self.assertEqual(1, len(link_msgstr))
AssertionError: 1 != 2

In index.md:

[Take me to the FAQ!]({filename}faq.md)
[Get in touch]({filename}get-in-touch.md)

results in the following in po/de.po:

#. type: Plain text
#: content/pages/index.md:11
msgid ""
"[Take me to the FAQ!]({filename}faq.md) [Get in touch]({filename}get-in-"
"touch.md)"
msgstr ""
"[Take me to the FAQ!]({filename}faq.de.md) [Get in touch]({filename}get-in-"
"touch.md)"