cmd/geth: bumped version number 0.9.28

Author: obscuren

cmd/geth/main.go

@@ -44,7 +44,7 @@ import (
 
 const (
 	ClientIdentifier = "Geth"
-	Version          = "0.9.27"
+	Version          = "0.9.28"
 )
 
 var (