message: Update src/tail/tunnel.rs
diff: @@ -15,7 +15,7 @@ pub struct Tunnel {
  /// Tunnel wraps a child process that runs cloudflared and forwards requests from the Trace Worker
  /// in the runtime to our local LogServer instance. We wrap it in a struct primarily to hold the
  /// state of the child process so that upon receipt of a SIGINT message we can more swiftly kill it
  -/// and wait on its output; otherwise we end up leaving it behind when wrangler exits and this
  +/// and wait on its output; otherwise we leave an orphaned process when wrangler exits and this
  /// causes problems if it still exists the next time we start up a tail.
  impl Tunnel {
  pub fn new() -> Result<Tunnel, failure::Error> {
  