How to modify JBoss EAP Management audit-log.log file readable for owner group

Issue

We are using the audit-log feature for management-operations. Using umask we have all the other logs readable for the owner's group, except audit-log.log, which gets its rights set in AbstractFileAuditLogHandler to not allow anyone except the owner to read. We would like the option to enable group-readability for audit-log files via standalone.xml or something similar, or an option to use custom handlers for audit-log.