message: protocol.Serializer: Show error log on invalid control character.
diff: @@ -411,10 +411,15 @@ namespace elle
  ELLE_DUMP_SCOPE("read control");
  char control = static_cast<char>(Control::max + 1);
  stream.read(&control, 1);
  - ELLE_DUMP("control: '%x'", (int) control);
  if (control > Control::max)
  + {
  + ELLE_ERR("%s: invalid control byte: 0x%x",
  + stream, static_cast<int>(control));
  elle::err<protocol::Error>(
  "invalid control byte: 0x%x", static_cast<int>(control));
  + }
  + else
  + ELLE_DUMP("control: '%x'", (int) control);
  return (Control) control;
  }
  