1. Why is this change necessary?

We can't go throw the installer in French because the file is not valid YAML.

2. What does this change do, exactly?

This change fix the specified file.

3. Describe each step to reproduce the issue or behaviour.

Steps to reproduce is described here

5. Checklist

• I have rebased my changes to remove merge conflicts
• I have written tests and verified that they fail without my change
• I have created a changelog file with all necessary information about my changes
• I have written or adjusted the documentation according to my changes
• This change has comments for package types, values, functions, and non-obvious lines of code
• I have read the contribution requirements and fulfil them.

Fix #3650