bug#30943: save-hist creates massive cache file

[Lars Ingebrigtsen]

Glenn Morris <rgm@gnu.org> writes:

> I think it's a reasonable feature request to ask that savehist be
> capable of dealing with additional variables that aren't automatically
> truncated (or if not it should be explicit about it).
>
> On the other hand, desktop is a superset of savehist and can can already
> do this (apparently, see desktop-globals-to-save).

I've now done the same with savehist-additional-variables in Emacs 29.

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