message: Update pcap datalink to pcap API changes introduced in 0.6.0.
  pcap#57b6d912dfd3ebc38f778af7f1b24e1b26855589
diff: @@ -108,7 +108,7 @@ impl EthernetDataLinkSender for DataLinkSenderImpl {
  func(eh);
  }
  let mut cap = self.capture.lock().unwrap();
  - if let Err(e) = cap.sendpacket(&data) {
  + if let Err(e) = cap.sendpacket(data) {
  return Some(Err(io::Error::new(io::ErrorKind::Other, e)))
  }
  }
  