@scribu it is actually an array not a string, as this is the `$config_spec` (returned from [`Utils\get_config_spec()`](https://github.com/wp-cli/wp-cli/blob/master/php/utils.php#L34-49)) not `$this->config`. So before this conditional, `$config_spec['path']` is the array:

```
Array
(
    [runtime] => =<path>
    [file] => <path>
    [synopsis] =>
    [default] =>
    [desc] => Path to the WordPress files
)
```

So my change here is to set the default config `path` to actually reflect the location of WordPress relative to the current working directory, but this can still be overridden via a config file or via the `--path` option, naturally.