Fixing other type of errors

[xescugc]

Following #224 there are other errors which are malformed.

In this case the return from the response from the CLI is unknown error (status 422): {}.

This error is returned directly from swagger client and it's from type runtime.APIError so it's not formatted by the fix I did on #224.

The runtime.AIPError#Response is of type client.response which holds the actual response but the data take from the response is not the message (which is still there).

If I print all the Response I can see the actual error in it, it's basically a path format error, the previous fix was about BE errors formated but this one is about errors directly from swagger validation.

The response if of type https://github.com/go-openapi/runtime/blob/v0.28.0/client_response.go#L25