correct mod style with multiple values.

modules/fontane/transform.xqm

@@ -639,7 +639,7 @@ as element(xhtml:span) {
     attribute class {
       'mod',
       $node/@type,
-      if($node/@rend) then "mod" || replace($node/@rend, ":", "_") else (),
+      if($node/@rend) then "mod" || replace($node/@rend, ";", "") => repalce(":", "_") => replace(" ", " mod") else (),
       if(local:modTest($node)) then 'addSesquipedalian' else ()
     },
     if($node/@style and not($node/@seq)) then $node/@style else (),