MDL-39387 fix /auth phpdocs

auth/shibboleth/auth.php

@@ -1,26 +1,29 @@
 <?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
 /**
- * @author Martin Dougiamas
- * @author Lukas Haemmerle
- * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
- * @package moodle multiauth
- *
  * Authentication Plugin: Shibboleth Authentication
- *
  * Authentication using Shibboleth.
  *
  * Distributed under GPL (c)Markus Hagman 2004-2006
  *
- * 10.2004     SHIBBOLETH Authentication functions v.0.1
- * 05.2005     Various extensions and fixes by Lukas Haemmerle
- * 10.2005     Added better error messags
- * 05.2006     Added better handling of mutli-valued attributes
- * 2006-08-28  File created, code imported from lib.php
- * 2006-10-27  Upstream 1.7 changes merged in, added above credits from lib.php :-)
- * 2007-03-09  Fixed authentication but may need some other changes
- * 2007-10-03  Removed requirement for email address, surname and given name on request of Markus Hagman
-  * 2008-01-21 Added WAYF functionality
-
+ * @package auth_shibboleth
+ * @author Martin Dougiamas
+ * @author Lukas Haemmerle
+ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
  */
 
 if (!defined('MOODLE_INTERNAL')) {