fix unsanitised xchan_name

(cherry picked from commit 9701516228)

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;
+		}
+	}
+
+}

boot.php

@@ -54,7 +54,7 @@ define ( 'STD_VERSION',             '3.6' );
 define ( 'ZOT_REVISION',            '6.0a' );
 
 
-define ( 'DB_UPDATE_VERSION',       1215 );
+define ( 'DB_UPDATE_VERSION',       1216 );
 
 define ( 'PROJECT_BASE',   __DIR__ );