```
$ 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.
}
    event_base_dispatch(base.get());
    if (response.status == 0) {
        std::string responseErrorMessage;
        if (response.error != -1) {
            responseErrorMessage = strprintf(" (error code %d - \"%s\")", response.error, http_errorstring(response.error));
        }
        throw CConnectionFailed(strprintf("Could not connect to the server %s:%d%s\n\nMake sure the bitcoind server is running and that you are connecting to the correct RPC port.", host, port, responseErrorMessage));
    } else if (response.status == HTTP_UNAUTHORIZED) {
        if (failedToGetAuthCookie) {
            throw std::runtime_error(strprintf(
                "Could not locate RPC credentials. No authentication cookie could be found, and RPC password is not set.  See -rpcpassword and -stdinrpcpass.  Configuration file: (%s)",
                GetConfigFile(gArgs.GetArg("-conf", BITCOIN_CONF_FILENAME)).string().c_str()));
        } else {
            throw std::runtime_error("Authorization failed: Incorrect rpcuser or rpcpassword");
        }
    } else if (response.status >= 400 && response.status != HTTP_BAD_REQUEST && response.status != HTTP_NOT_FOUND && response.status != HTTP_INTERNAL_SERVER_ERROR)
        throw std::runtime_error(strprintf("server returned HTTP error %d", response.status));
    else if (response.body.empty())
        throw std::runtime_error("no response from server");
    
    UniValue valReply(UniValue::VSTR);
    if (!valReply.read(response.body))
        throw std::runtime_error("couldn't parse reply from server");
    const UniValue reply = rh->ProcessReply(valReply);
    if (reply.empty())
        throw std::runtime_error("expected reply to have result, error and id properties");
    return reply;
}
static int CommandLineRPC(int argc, char *argv[])