Well, the very simplest thing is just what he did. "Here guys, look at my code."
By doing so, he doesn't give up any (exclusive) rights he has as an author. It's not the best from a user's perspective, but it's the simplest and most conservative from an author's perspective (short of not releasing the code at all).
By doing so, he doesn't give up any (exclusive) rights he has as an author. It's not the best from a user's perspective, but it's the simplest and most conservative from an author's perspective (short of not releasing the code at all).