Keep multiline descriptions

[Auric-Manteo]

When I run the latest version it puts all descriptions in a single line which makes them hard to read. Especially in version control systems like Github.
It would be great to have an option to prevent that.

[b-per]

This is due to some of the limitations of YAML parsing/dumping in Python.

Neither pyyaml not ruamel-yaml have an option for keeping string formatting.

The tool should just modify files that have issues though.
So, if you commit the real fixes and revert the multiline changes, the next time autofix runs it won't change your description.