diff --git a/src/libexec/opnsense-auth b/src/libexec/opnsense-auth
index bf91efc96..b8ec05677 100755
--- a/src/libexec/opnsense-auth
+++ b/src/libexec/opnsense-auth
@@ -1,42 +1,41 @@
 #!/usr/local/bin/php
 <?php
 
-/**
- *    Copyright (C) 2016-2019 Deciso B.V.
+/*
+ * Copyright (C) 2016-2019 Deciso B.V.
+ * All rights reserved.
  *
- *    All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
  *
- *    Redistribution and use in source and binary forms, with or without
- *    modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
  *
- *    1. Redistributions of source code must retain the above copyright notice,
- *       this list of conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in the
- *       documentation and/or other materials provided with the distribution.
- *
- *    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
- *    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- *    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- *    AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
- *    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- *    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- *    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- *    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- *    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- *    POSSIBILITY OF SUCH DAMAGE.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
  *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
  */
 
 require_once("config.inc");
 require_once("auth.inc");
 
-
-// parse received auth data (key=value combinations separated by "\0")
-//  user=<name>
-//  password=<password>
-//  service=<pam service>
+/*
+ * parse received auth data (key=value combinations separated by "\0")
+ *    user=<name>
+ *    password=<password>
+ *    service=<pam service>
+ */
 
 $fp = fopen('php://stdin', 'r');
 $auth_data = array();
@@ -65,13 +64,13 @@ if (!empty($auth_data['user']) && isset($auth_data['password'])) {
     if ($is_authenticated) {
         $authProps = $authFactory->getLastAuthProperties();
         if (!empty($authProps)) {
-            // dump authentication response data to stdout
+            /* dump authentication response data to stdout */
             echo json_encode($authProps, JSON_INVALID_UTF8_IGNORE) ."\n";
         }
         $exit_status = 0;
     } else {
         if (getUserEntry($auth_data['user']) === false) {
-            // signal user unknown, so PAM may consider other options
+            /* signal user unknown, so PAM may consider other options */
             $exit_status = 2;
         }
     }