I adapted your code to match the user interface of String::LCSS, and I uploaded it as a patch: https://rt.cpan.org/Ticket/Display.html?id=32036

I also patched the test to prove that your code fixes the reported functional bugs. Perhaps this will lower the barrier for someone to upload a new version of this module to CPAN.

UPDATE: I sent the module author an email, offering my services as co-maintainer. Waiting for a response...