Clean up the helpers
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php
index 97e6986..470b61e 100644
--- a/system/helpers/download_helper.php
+++ b/system/helpers/download_helper.php
@@ -100,7 +100,7 @@
 			$x[count($x) - 1] = strtoupper($extension);
 			$filename = implode('.', $x);
 		}
-		
+
 		// Clean output buffer
 		ob_clean();