Clear some spaces and fix some inconsistencies in the Zip library and system/helpers/ files
diff --git a/system/helpers/text_helper.php b/system/helpers/text_helper.php
index 7591bac..2d0f78d 100644
--- a/system/helpers/text_helper.php
+++ b/system/helpers/text_helper.php
@@ -1,13 +1,13 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 /**
  * CodeIgniter
  *
  * An open source application development framework for PHP 5.2.4 or newer
  *
  * NOTICE OF LICENSE
- * 
+ *
  * Licensed under the Open Software License version 3.0
- * 
+ *
  * This source file is subject to the Open Software License (OSL 3.0) that is
  * bundled with this package in the files license.txt / license.rst.  It is
  * also available through the world wide web at this URL:
@@ -534,4 +534,4 @@
 }
 
 /* End of file text_helper.php */
-/* Location: ./system/helpers/text_helper.php */
+/* Location: ./system/helpers/text_helper.php */
\ No newline at end of file