MT#15685 suppress output for correct backuritmp

by default, query_param_delete returns a value, which is printed by
Template Toolkit.

Change-Id: Ib6bd0e34fc16e765f957898763cb00ab029721fe

share/layout/body.tt

@@ -158,9 +158,9 @@ var mainWrapperInit = function () {
     -%]
     $('a').each(function() {
         var _text = $(this).text().trim();
-        var href = $(this).attr('href');
+        var _href = $(this).attr('href');
         var javascriptLink = 0;
-        if(href && ( href.search(/^javascript:/i) > -1 ) ){
+        if(_href && ( _href.search(/^javascript:/i) > -1 ) ){
             javascriptLink = 1;
         }
         if(_text == "Back" ||
@@ -173,7 +173,6 @@ var mainWrapperInit = function () {
 
             return true;
         }
-        var _href = $(this).attr('href');
         var backuri = $(this).data('backuri') ? $(this).data('backuri') : '[%- backuri | uri -%]';
         var _back = 'back='+backuri;
         if(_href == null || _href.match(/[&\?]back=/)) {

share/templates/rewrite/rules_list.tt

@@ -51,7 +51,14 @@
             <td class="ngcp-actions-column">
             [% UNLESS c.user.read_only -%]
                 <div class="sw_actions pull-right">
-                    <a class="btn btn-small btn-primary" data-backuri="[%-backuritmp=c.req.uri;backuritmp.query_param_delete('back');backuritmp.query_param_delete('move');backuritmp.query_param_delete('where');backuritmp-%]" href="[% c.uri_for_action('/rewrite/rules_edit',[set_result.id, r.id]) %]">
+                    [%- FILTER null;
+                            backuritmp=c.req.uri;
+                            backuritmp.query_param_delete('back');
+                            backuritmp.query_param_delete('move');
+                            backuritmp.query_param_delete('where');
+                        END;
+                    %]
+                    <a class="btn btn-small btn-primary" data-backuri="[%-backuritmp-%]" href="[% c.uri_for_action('/rewrite/rules_edit',[set_result.id, r.id]) %]">
                         <i class="icon-edit"></i> [% c.loc('Edit') %]
                     </a>
                     <a data-confirm="Delete" class="btn btn-small btn-secondary" href="[% c.uri_for_action('/rewrite/rules_delete',[set_result.id, r.id]) %]">