GitLab

(savehist-history-variables): Remove.
(savehist-save-minibuffer-history, savehist-additional-variables)
(savehist-minibuffer-history-variables): New vars.
(savehist-save): Use them.
(savehist-uninstall, savehist-minibuffer-hook): New funs.
(savehist-install): New fun, extracted from savehist-load.
(savehist-load): Use them.