[DOCUMENTATION]: fix incorrect option for programlisting

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@23625 44c647ce-9c0f-0410-b52a-842ac1e357ba

documentation/manual/en/module_specs/Zend_Cloud_DocumentService.xml

@@ -397,7 +397,7 @@ $documents = Zend_Cloud_DocumentService_Factory::getAdapter(array(
             follows:
         </para>
 
-        <programlisting lang="php"><![CDATA[
+        <programlisting language="php"><![CDATA[
 /**
  * ArrayAccess allows accessing fields by array key:
  *    $doc['fieldname']