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* lisp/dired.el (dired-get-subdir-min): Redefine as obsolete function
alias for 'cdr'.  (Bug#11571)
(dired-get-subdir, dired-get-subdir-max, dired-clear-alist)
(dired-next-subdir, dired-current-directory):
* lisp/dired-aux.el (dired-rename-subdir-2)
(dired-alist-sort, dired-insert-subdir-del)
(dired-insert-subdir-doupdate, dired-goto-subdir)
(dired-hide-subdir, dired-hide-all): Use 'cdr' instead of
the above obsolete function.
(dired-subdir-alist): Doc fix.
Co-authored-by: Drew Adams <drew.adams@oracle.com>