Re: problems with face-spec-reset-face and set-face-attribute

[Richard M. Stallman]

    >       (set-face-attribute 'completions-first-difference nil :inherit nil)
    >
    > I don't think that is how things are designed to work.
    > I don't know what he meant by it, so I don't see a reason
    > to argue about the hermeneutics.

    I don't know if this is designed to work so or not, since I am not the
    author of this functionality, and I can't find where it is documented.

Face attributes are documented in the Lisp Manual; isn't this
explained there?