message: Fix variable shadowing in bitnodes.cpp
  bitnodes.cpp:308:33: warning: declaration shadows a local variable [-Wshadow]
  const UniValue &result = find_value(o, "node");
  ^
  bitnodes.cpp:296:25: note: previous declaration is here
  const UniValue &result = find_value(reply, "results");
diff: @@ -305,10 +305,10 @@ bool GetLeaderboardFromBitnodes(vector<string> &vIPs)
  for (std::vector<UniValue>::iterator it = v.begin(); it != v.end(); ++it)
  {
  const UniValue &o = *it;
  - const UniValue &result = find_value(o, "node");
  - if (result.isStr())
  + const UniValue &_result = find_value(o, "node");
  + if (_result.isStr())
  {
  - string s = result.get_str();
  + string s = _result.get_str();
  vIPs.push_back(s);
  count++;
  }
  