[VOL-5486] Upgrade library versions

Change-Id: I8b4e88699e03f44ee13e467867f45ae3f0a63c4b
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/github.com/golang/snappy/CONTRIBUTORS b/vendor/github.com/golang/snappy/CONTRIBUTORS
index d991473..ea6524d 100644
--- a/vendor/github.com/golang/snappy/CONTRIBUTORS
+++ b/vendor/github.com/golang/snappy/CONTRIBUTORS
@@ -26,7 +26,9 @@
 
 # Please keep the list sorted.
 
+Alex Legg <alexlegg@google.com>
 Damian Gryski <dgryski@gmail.com>
+Eric Buth <eric@topos.com>
 Jan Mercl <0xjnml@gmail.com>
 Jonathan Swinney <jswinney@amazon.com>
 Kai Backman <kaib@golang.org>