+ 8. New expansion operators ${listnamed:name} to get the content of a named list
+ and ${listcount:string} to count the items in a list.
+
+ 9. New expansion item ${acl {name}{arg}...} to call an ACL. The argument can
+ be accessed by the ACL in $acl_arg1 to $acl_arg9. $acl_narg will be the
+ number of arguments. The expansion result is set by a "message =" modifier
+ and an "accept" return from the ACL.