message: Simplify MsgArgs initialization
diff: @@ -146,16 +146,16 @@ fn parse_msg_args(args: &[u8]) -> io::Result<ControlOp> {
  Ok(sid) => sid,
  _ => return Err(parse_error()),
  };
  - let msg_len = match u32::from_str(args[len_index]) {
  - Ok(msg_len) => msg_len,
  + let mlen = match u32::from_str(args[len_index]) {
  + Ok(mlen) => mlen,
  _ => return Err(parse_error()),
  };
  let m = MsgArgs {
  subject: subject.to_owned(),
  - reply: reply,
  - // data: Vec::with_capacity(msg_len as usize),
  - mlen: msg_len,
  - sid: sid,
  + reply,
  + // data: Vec::with_capacity(mlen as usize),
  + mlen,
  + sid,
  };
  Ok(ControlOp::Msg(m))
  }
  