Allows `requestInterceptor` to add options to the curl command.
For example:

```js
requestInterceptor: function (request) {
  if (request.method === 'GET') {
    request.curlOptions = ['-g']
    request.url = request.url
      .replace('%5B', '[')
      .replace('%5D', ']')
      .replace('%2C', ',');
  }
  return request;
}
```