edit textarea selector

bt5/erp5_wendelin_tutorial_test/PathTemplateItem/portal_tests/wendelin_tutorial_zuite/testWendelinTutorial.zpt

@@ -337,7 +337,7 @@
         </tr>
         <tr>
           <td>type</td>
-          <td>//*[@data-gadget-editable="field_my_text_content"]/textarea</td>
+          <td>//*[@data-gadget-editable="field_my_text_content"]</td>
           <td tal:content="python: '%s' % ('''&lt;html&gt;
 &lt;head&gt;
   &lt;meta http-equiv='Content-type' content='text/html; charset=utf-8' /&gt;