RE: autoload cookies for defcustoms

[Drew Adams]

> AFAIK, `purecopy' has nothing to do with it, except that *if*
> a defcustom is preloaded (either because it's in a preloaded file or
> because it has an autoload cookie), then it may be desirable 
> to purecopy parts of its default value.  But it should never be a
> reason to decide whether to autoload or not.

Very good to hear.

However, looking at the options that actually use `purecopy' and have autoload
cookies, I have doubts that that guideline has been respected. It _seems_ that
`purecopy' has been added here and there and _consequently_ an autoload cookie
was then added.