message: Rename `is_joiner` to `is_peer_joiner` for clarity
diff: @@ -67,7 +67,7 @@ struct HandshakeOutcome {
  framed_transport: FramedTransport,
  public_addr: SocketAddr,
  peer_consensus_public_key: Option<PublicKey>,
  - is_joiner: bool,
  + is_peer_joiner: bool,
  }
  /// Low-level TLS connection function.
  @@ -149,7 +149,7 @@ where
  framed_transport,
  public_addr,
  peer_consensus_public_key,
  - is_joiner,
  + is_peer_joiner: is_joiner,
  }) => {
  if let Some(ref public_key) = peer_consensus_public_key {
  Span::current().record("validator_id", &field::display(public_key));
  @@ -266,7 +266,7 @@ where
  framed_transport,
  public_addr,
  peer_consensus_public_key,
  - is_joiner: _,
  + is_peer_joiner: _,
  }) => {
  if let Some(ref public_key) = peer_consensus_public_key {
  Span::current().record("validator_id", &field::display(public_key));
  @@ -466,7 +466,7 @@ where
  framed_transport,
  public_addr,
  peer_consensus_public_key,
  - is_joiner,
  + is_peer_joiner: is_joiner,
  })
  } else {
  // Received a non-handshake, this is an error.
  