labels "commit activity" using format

rhodecode/templates/summary/summary.html

@@ -452,14 +452,11 b' function SummaryPlot(from,to,dataset,ove'
             data[pos].color = i;
             i++;
             if(data[pos].label != ''){
-                var l = data[pos].label;
-                choiceContainerTable.innerHTML += '<tr><td>'+
-                    '<input type="checkbox" id="id_user_' + l + '" name="' + l +'" checked="checked" />' +
-                    '<label for="id_user_' + l + '">' +  l + '</label></td></tr>';
+                choiceContainerTable.innerHTML +=
+                    '<tr><td><input type="checkbox" id="id_user_{0}" name="{0}" checked="checked" /> \
+                     <label for="id_user_{0}">{0}</label></td></tr>'.format(data[pos].label);
             }
         }
-
-        console.log(data);
     }
 
     /**