Fix missing php tags (#6687)

* fix missing php tags

* fix missing php tags

resources/classes/event/handler/syslog.php

@@ -1,4 +1,6 @@
-include_once('virtual.php');
+<?php
+
+	include_once('virtual.php');
 
 class Syslog extends Event_Handler{
 

resources/classes/event/handler/virtual.php

@@ -1,3 +1,5 @@
+<?php
+	
 abstract class Event_Handler{
 	// Force Extending class to define this method
 	abstract public function log_event($event_type, $params);