Update syslog_reports.php

Correct the call to get_username, based on the comment of TheWitness
Add the argument $_SESSION['sess_user_id']

Author: arno-st

syslog_reports.php

@@ -253,7 +253,7 @@ function api_syslog_report_save($id, $name, $type, $message, $timespan, $timepar
 	global $config, $syslogdb_default;
 
 	// get the username
-	$username = get_username();
+	$username = get_username($_SESSION['sess_user_id']);
 
 	if ($id) {
 		$save['id'] = $id;