gRPC migration update

Change-Id: Icdd1a824948fa994cd36bd121c962f5ecf74e3cf
diff --git a/vendor/github.com/google/uuid/sql.go b/vendor/github.com/google/uuid/sql.go
index f326b54..2e02ec0 100644
--- a/vendor/github.com/google/uuid/sql.go
+++ b/vendor/github.com/google/uuid/sql.go
@@ -9,7 +9,7 @@
 	"fmt"
 )
 
-// Scan implements sql.Scanner so UUIDs can be read from databases transparently
+// Scan implements sql.Scanner so UUIDs can be read from databases transparently.
 // Currently, database types that map to string and []byte are supported. Please
 // consult database-specific driver documentation for matching types.
 func (uuid *UUID) Scan(src interface{}) error {