It is intended for use in customizing Icomplete for interoperation
with other features and packages. For instance:
- (add-hook 'icomplete-minibuffer-setup-hook
+ (add-hook \\='icomplete-minibuffer-setup-hook
(lambda () (setq-local max-mini-window-height 3)))
will constrain Emacs to a maximum minibuffer height of 3 lines when