message: Add missing err check.
diff: @@ -283,6 +283,9 @@ func main() {
  }
  hd, err := hybrid.NewHybridDecrypt(khPriv)
  + if err != nil {
  + log.Fatal(err)
  + }
  pt, err := hd.Decrypt(ct, []byte("context info"))
  if err != nil {
  