message: Fix unbalanced pushKV parenthesis and an instance of Pair()
diff: @@ -2260,13 +2260,12 @@ extern UniValue getstructuresizes(const UniValue &params, bool fHelp)
  LOCK(inode.cs_filter);
  if (inode.pfilter)
  {
  - node.push_back(
  - Pair("pfilter", (int64_t)::GetSerializeSize(*inode.pfilter, SER_NETWORK, PROTOCOL_VERSION)));
  + node.pushKV("pfilter", (int64_t)::GetSerializeSize(*inode.pfilter, SER_NETWORK, PROTOCOL_VERSION));
  }
  if (inode.pThinBlockFilter)
  {
  node.pushKV("pThinBlockFilter",
  - (int64_t)::GetSerializeSize(*inode.pThinBlockFilter, SER_NETWORK, PROTOCOL_VERSION)));
  + (int64_t)::GetSerializeSize(*inode.pThinBlockFilter, SER_NETWORK, PROTOCOL_VERSION));
  }
  }
  node.pushKV("thinblock.vtx", (int64_t)inode.thinBlock.vtx.size());
  