gRPC migration update

Change-Id: Icdd1a824948fa994cd36bd121c962f5ecf74e3cf
diff --git a/vendor/github.com/Shopify/sarama/crc32_field.go b/vendor/github.com/Shopify/sarama/crc32_field.go
index 38189a3..32236e5 100644
--- a/vendor/github.com/Shopify/sarama/crc32_field.go
+++ b/vendor/github.com/Shopify/sarama/crc32_field.go
@@ -72,6 +72,7 @@
 
 	return nil
 }
+
 func (c *crc32Field) crc(curOffset int, buf []byte) (uint32, error) {
 	var tab *crc32.Table
 	switch c.polynomial {