Fix review comment from bug 259478

calendar/base/content/calendar-event-dialog.xul

@@ -129,8 +129,8 @@
           <vbox>
             <hbox align="center">
               <datetimepicker id="event-endtime" onchange="onEndTimeChange();" class="event-only"/>
-              <checkbox id="todo-has-duedate" oncommand="updateDueDate();" class="todo-only"/>
-              <datetimepicker id="todo-duedate" onchange="onEndTimeChange();" class="todo-only checkbox-no-label"/>
+              <checkbox id="todo-has-duedate" oncommand="updateDueDate();" class="todo-only checkbox-no-label"/>
+              <datetimepicker id="todo-duedate" onchange="onEndTimeChange();" class="todo-only"/>
               <checkbox id="item-recurrence" oncommand="updateRecurrence();"
                         label="&newevent.repeat.label2;"/>
               <button id="set-recurrence" label="&newevent.set.label;" oncommand="editRecurrence();"/>