```
$ 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.
#if defined(HAVE_CONFIG_H)
#include <config/bitcoin-config.h>
#endif
#include <chainparamsbase.h>
#include <clientversion.h>
#include <fs.h>
#include <rpc/client.h>
#include <rpc/protocol.h>
#include <rpc/request.h>
#include <util/strencodings.h>
#include <util/system.h>
#include <util/translation.h>
#include <functional>
#include <memory>
#include <stdio.h>
#include <tuple>
#include <event2/buffer.h>
#include <event2/keyvalq_struct.h>
#include <support/events.h>
#include <univalue.h>
#include <compat/stdin.h>
const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr;
static const char DEFAULT_RPCCONNECT[] = "127.0.0.1";
static const int DEFAULT_HTTP_CLIENT_TIMEOUT=900;
static const bool DEFAULT_NAMED=false;
static const int CONTINUE_EXECUTION=-1;
static void SetupCliArgs()