```
$ bitcoin-cli --help   
Bitcoin Core RPC client version v0.19.0rc1
...
  -rpcclienttimeout=<n>
       Timeout in seconds during HTTP requests, or 0 for no timeout. (default:
       900)
```

The _"0 for no timeout"_ part, added in #9903, is wrong:

```
$ time bitcoin-cli -rpcclienttimeout=0 gettxoutsetinfo
error: Could not connect to the server 127.0.0.1:8332 (error code 0 - "timeout reached")

Make sure the bitcoind server is running and that you are connecting to the correct RPC port.

real	0m51.279s
user	0m0.005s
sys	0m0.019s
```

Both 0.18.0 and 0.19.0rc1 are affected.
{
public:
    const int ID_NETWORKINFO = 0;
    const int ID_BLOCKCHAININFO = 1;
    const int ID_WALLETINFO = 2;
    
    UniValue PrepareRequest(const std::string& method, const std::vector<std::string>& args) override
    {
        if (!args.empty()) {
            throw std::runtime_error("-getinfo takes no arguments");
        }
        UniValue result(UniValue::VARR);
        result.push_back(JSONRPCRequestObj("getnetworkinfo", NullUniValue, ID_NETWORKINFO));
        result.push_back(JSONRPCRequestObj("getblockchaininfo", NullUniValue, ID_BLOCKCHAININFO));
        result.push_back(JSONRPCRequestObj("getwalletinfo", NullUniValue, ID_WALLETINFO));
        return result;
    }
    
    UniValue ProcessReply(const UniValue &batch_in) override
    {
        UniValue result(UniValue::VOBJ);
        std::vector<UniValue> batch = JSONRPCProcessBatchReply(batch_in, 3);