Zend_Form: fix case typo in unit tests.

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@23436 44c647ce-9c0f-0410-b52a-842ac1e357ba

tests/Zend/Form/Decorator/FieldsetTest.php

@@ -34,7 +34,7 @@ require_once 'Zend/Form/Decorator/Fieldset.php';
 require_once 'Zend/Form.php';
 require_once 'Zend/Form/Element.php';
 require_once 'Zend/View.php';
-require_once 'Zend/Form/Subform.php';
+require_once 'Zend/Form/SubForm.php';
 /**
  * Test class for Zend_Form_Decorator_Fieldset
  *