fix unsanitised xchan_name

Zotlabs/Update/_1216.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Zotlabs\Update;
+
+class _1215 {
+
+	function run() {
+
+		$r = q("UPDATE xchan set xchan_name = 'unknown' where xchan_name like '%<%' ");
+
+		if($r) {
+			return UPDATE_SUCCESS;
+		}
+		else {        
+			return UPDATE_FAILED;
+		}
+	}
+
+}