[ZF-8766] Sample code error - missing comma after setting label

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@20212 44c647ce-9c0f-0410-b52a-842ac1e357ba

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

@@ -104,7 +104,7 @@ $element = new Zend_Form_Element_Captcha('foo', array(
 
 // Using both captcha and captchaOptions:
 $element = new Zend_Form_Element_Captcha('foo', array(
-    'label' => "Please verify you're a human"
+    'label' => "Please verify you're a human",
     'captcha' => 'Figlet',
     'captchaOptions' => array(
         'captcha' => 'Figlet',