Fix a capitalization issue.

library/Unl/View/Helper/HtmlDiff.php

@@ -24,7 +24,7 @@ class Unl_View_Helper_HtmlDiff extends Zend_View_Helper_Abstract
 
         Zend_Loader_Autoloader::getInstance()->registerNamespace('Horde_');
         if (!self::$_diffRenderer) {
-            self::$_diffRenderer = new Horde_Text_Diff_Renderer_inline();
+            self::$_diffRenderer = new Horde_Text_Diff_Renderer_Inline();
         }
 
         $currentArray = array();