Add check to _hasDustOutputs if output has OP_RETURN

lib/transaction/transaction.js

@@ -153,6 +153,9 @@ Transaction.DUST_AMOUNT = 5460;
 Transaction.prototype._hasDustOutputs = function() {
   var output;
   for (output in this.outputs) {
+    if (this.outputs[output].script.isDataOut()) {
+      return false;
+    }
     if (this.outputs[output].satoshis < Transaction.DUST_AMOUNT) {
       return true;
     }