message: [network] update error message for logging
  Closes:
  Approved by: opsguy
diff: @@ -50,7 +50,7 @@ pub enum NetworkErrorKind {
  #[fail(display = "Parsing error")]
  ParsingError,
  - #[fail(display = "Peer disconnected")]
  + #[fail(display = "Failed to connect to peer")]
  NotConnected,
  }
  