merged tab hilite fix

lib/python/ZClasses/dtml/classPermissions.dtml

 <dtml-var manage_page_header>
-<dtml-if manage_tabs>
 <dtml-with "_(management_view='Permissions')">
-<dtml-var manage_tabs>
+<dtml-if manage_tabs><dtml-var manage_tabs></dtml-if>
 </dtml-with>
-</dtml-if manage_tabs>
 
 <p class="form-help">
 Use this view to select permissions used by this class.