Add missing vars

nodered/encode_locapack_header/encode_locapack_header.js

@@ -7,8 +7,8 @@ module.exports = function(RED) {
             const buff = Buffer.alloc(128);
             var len = 0;
             var header = 0;
-            var altitude_presence_flag = false;
-            var dop_presence_flag = false;
+            var timestamp_presence_flag = false;
+            var movement_id_presence_flag = false;
             var packet_type;
 
             // Check mandatory fields