Re: custom-set-variables fails to set variable

[Richard M. Stallman]

    I do not know wether the fact that a hook is unbound caused problems
    back in July 2003, but it certainly causes no problems in today's CVS.
    Many hooks are unbound until add-hook gets called for them.

It is nicer if the hooks are bound and have doc strings.  Not necessary,
but nicer.  That is why I suggested other ways to fix this.

If those don't work, or are too hard, then as a fallback we can delete
these defvars.