Mailman directives

Virtualmin adds these redirections to apache virtual server conf when mailman plugin is enabled. What is the purpose of these and how do I use them?

RedirectMatch /cgi-bin/mailman/([[^/]])(.) https://domain.com:10000/virtualmin-mailman/unauthenticated/$1.cgi$2
RedirectMatch /mailman/([[^/]])(.) https://domain.com:10000/virtualmin-mailman/unauthenticated/$1.cgi$2