Update CodeIgniter system 3.1.0 => 3.1.16

www/system/core/Exceptions.php

@@ -6,7 +6,7 @@
  *
  * This content is released under the MIT License (MIT)
  *
- * Copyright (c) 2014 - 2016, British Columbia Institute of Technology
+ * Copyright (c) 2014 - 2019, British Columbia Institute of Technology
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -29,8 +29,8 @@
  * @package	CodeIgniter
  * @author	EllisLab Dev Team
  * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
- * @copyright	Copyright (c) 2014 - 2016, British Columbia Institute of Technology (http://bcit.ca/)
- * @license	http://opensource.org/licenses/MIT	MIT License
+ * @copyright	Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
+ * @license	https://opensource.org/licenses/MIT	MIT License
  * @link	https://codeigniter.com
  * @since	Version 1.0.0
  * @filesource
@@ -207,7 +207,6 @@ class CI_Exceptions {
 		}
 		else
 		{
-			set_status_header(500);
 			$templates_path .= 'html'.DIRECTORY_SEPARATOR;
 		}
 
@@ -232,7 +231,7 @@ class CI_Exceptions {
 	 * @param	string	$message	Error message
 	 * @param	string	$filepath	File path
 	 * @param	int	$line		Line number
-	 * @return	string	Error page output
+	 * @return	void
 	 */
 	public function show_php_error($severity, $message, $filepath, $line)
 	{