gRPC migration update

Change-Id: Icdd1a824948fa994cd36bd121c962f5ecf74e3cf
diff --git a/vendor/github.com/golang/snappy/AUTHORS b/vendor/github.com/golang/snappy/AUTHORS
index bcfa195..203e84e 100644
--- a/vendor/github.com/golang/snappy/AUTHORS
+++ b/vendor/github.com/golang/snappy/AUTHORS
@@ -8,8 +8,10 @@
 
 # Please keep the list sorted.
 
+Amazon.com, Inc
 Damian Gryski <dgryski@gmail.com>
 Google Inc.
 Jan Mercl <0xjnml@gmail.com>
+Klaus Post <klauspost@gmail.com>
 Rodolfo Carvalho <rhcarvalho@gmail.com>
 Sebastien Binet <seb.binet@gmail.com>