Major Description
The reply to a command consists of 3 digits, followed by space, followed by text.
For a multi-line reply, the space is replaced with a hypen (minus) on the first line.
The code currently handles the hyphen correctly, but it does not insist that the reply code is followed by a space.
It ought to check this and throw a MalformedServerReplyException if the reply does not have the correct syntax.