[GENERIC] Documentation:

- fixed bug in example

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@17663 44c647ce-9c0f-0410-b52a-842ac1e357ba

documentation/manual/en/module_specs/Zend_Form-StandardElements.xml

@@ -222,7 +222,7 @@ $form->setAttrib('enctype', 'multipart/form-data');
             </para>
 
             <programlisting language="php"><![CDATA[
-if (!$form->isValid) {
+if (!$form->isValid()) {
     print "Uh oh... validation error";
 }