CloseError wrapping

[pymq]

I think there is a misspelling: %v instead of %w here.
My case is checking error from executing conn.Read() As websocket.CloseError and handle disconnection

[nhooyr]

So that's intended. See #103

#160 should help clear this up and make it more intuitive.

The idea is that you only want to check for a status code you receive from the peer but if you send a status code, you don't want to check for it, just error out.