Fixed double-space typo.
diff --git a/system/helpers/xml_helper.php b/system/helpers/xml_helper.php
index cdd81ad..2219d66 100644
--- a/system/helpers/xml_helper.php
+++ b/system/helpers/xml_helper.php
@@ -1,4 +1,4 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
@@ -46,7 +46,7 @@
 
 		if ($protect_all === TRUE)
 		{
-			$str = preg_replace("/&(\w+);/",  "$temp\\1;", $str);
+			$str = preg_replace("/&(\w+);/", "$temp\\1;", $str);
 		}
 
 		$str = str_replace(array("&","<",">","\"", "'", "-"),