`choose-completion-string-functions' use full function signature
with 4 args, and move point to the end of the minibuffer only if arg
`mini-p' is non-nil.
(funcall
(if partial-completion-mode 'add-hook 'remove-hook)
'choose-completion-string-functions
- (lambda (&rest x) (goto-char (point-max)) nil))
+ (lambda (choice buffer mini-p base-size)
+ (if mini-p (goto-char (point-max)))
+ nil))
;; Build the env-completion and mapping table.
(when (and partial-completion-mode (null PC-env-vars-alist))
(setq PC-env-vars-alist