Added a feature to avoid linebreaks between option when displaying help by sybaris · Pull Request #242 · commandlineparser/commandline
All of these test updates should've alerted you to the fact that you broke the existing expected interface. This will cause problems for people simply upgrading from a patch release, we'd have to make it wait until a full version release.
As noted elsewhere, you should preserve this method and make your new method an overload with the old method calling the new method with that default ParserSettings instance.