As pointed out by nico, we should unconditionally disable breaking of
long words in comments. It is unlikely long words that are in comments
should be split (like pathnames).
Long file names, especially with hyphens will get incorrectly wrapped by
the comment method. Pass has_path=True to prevent this type of wrapping.
This is mainly so that longer path names can show up in comments on
their on line without breaking them up.
