message: address review issues.
diff: @@ -1699,7 +1699,7 @@ namespace eosio {
  if (!b) {
  send_req = true;
  req.req_blocks.ids.push_back( blkid );
  - req_blks.push_back( (block_request){blkid, generated} );
  + req_blks.push_back( {blkid, generated} );
  }
  }
  }
  @@ -2204,6 +2204,10 @@ namespace eosio {
  return;
  }
  c->cancel_wait();
  + if(local_txns.get<by_id>().find(msg.id()) != local_txns.end()) {
  + fc_dlog(logger, "got a duplicate transaction - dropping");
  + return;
  + }
  big_msg_master->recv_transaction(c);
  uint64_t code = 0;
  try {
  