gRPC migration update

Change-Id: Icdd1a824948fa994cd36bd121c962f5ecf74e3cf
diff --git a/vendor/github.com/Shopify/sarama/add_partitions_to_txn_request.go b/vendor/github.com/Shopify/sarama/add_partitions_to_txn_request.go
index 8d4b42e..57ecf64 100644
--- a/vendor/github.com/Shopify/sarama/add_partitions_to_txn_request.go
+++ b/vendor/github.com/Shopify/sarama/add_partitions_to_txn_request.go
@@ -1,6 +1,6 @@
 package sarama
 
-//AddPartitionsToTxnRequest is a add paartition request
+// AddPartitionsToTxnRequest is a add paartition request
 type AddPartitionsToTxnRequest struct {
 	TransactionalID string
 	ProducerID      int64
@@ -72,6 +72,10 @@
 	return 0
 }
 
+func (a *AddPartitionsToTxnRequest) headerVersion() int16 {
+	return 1
+}
+
 func (a *AddPartitionsToTxnRequest) requiredVersion() KafkaVersion {
 	return V0_11_0_0
 }