Removed closing PHP tags, replaced with a comment block identifying the end of the file
diff --git a/system/libraries/Config.php b/system/libraries/Config.php
index 73f1986..f3ae763 100644
--- a/system/libraries/Config.php
+++ b/system/libraries/Config.php
@@ -242,4 +242,6 @@
 }

 

 // END CI_Config class

-?>
\ No newline at end of file
+
+/* End of file Config.php */
+/* Location: ./system/libraries/Config.php */
\ No newline at end of file