GitLab

(savehist-save-minibuffer-history, savehist-additional-variables)
(savehist-file, savehist-mode-hook, savehist-save-hook, savehist-coding-system)
(savehist-loaded, savehist-load, savehist-install, savehist-autosave):
Fix typos; mostly, refer to "Savehist mode" when talking about the mode,
and not the function.