```
$ 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.
"or:     bitcoin-cli [options] help <command>      Get help for a command\n";
            strUsage += "\n" + gArgs.GetHelpMessage();
        }
        tfm::format(std::cout, "%s", strUsage.c_str());
        if (argc < 2) {
            tfm::format(std::cerr, "Error: too few parameters\n");
            return EXIT_FAILURE;
        }
        return EXIT_SUCCESS;
    }
    if (!CheckDataDirOption()) {
        tfm::format(std::cerr, "Error: Specified data directory \"%s\" does not exist.\n", gArgs.GetArg("-datadir", "").c_str());
        return EXIT_FAILURE;
    }
    if (!gArgs.ReadConfigFiles(error, true)) {
        tfm::format(std::cerr, "Error reading configuration file: %s\n", error.c_str());
        return EXIT_FAILURE;
    }
    
    try {
        SelectBaseParams(gArgs.GetChainName());
    } catch (const std::exception& e) {
        tfm::format(std::cerr, "Error: %s\n", e.what());
        return EXIT_FAILURE;
    }
    return CONTINUE_EXECUTION;
}
struct HTTPReply
{
    HTTPReply(): status(0), error(-1) {}