Extensions to `dired-sort-menu.el'
Francis J. Wright wrote library
`dired-sort-menu.el'
(https://www.emacswiki.org/emacs/dired-sort-menu.el, originally
http://centaur.maths.qmw.ac.uk/Emacs/).
Library `dired-sort-menu+.el' modifies `dired-sort-menu.el' to play
better with other libraries from Drew Adams.
Changes:
1. The toggles for reverse sorting, `ls-lisp-ignore-case' and
`ls-lisp-dirs-first', are bound respectively to "a", "c", and
"W" in the dired map, instead of "r", "c" and "b".
2. We don't define `dired-sort-menu-toggle-ignore-case' and
`dired-sort-menu-toggle-dirs-first' unless they can be used.
3. `handle-delete-frame' is protected against nil `buffer-name'.
***** NOTE: The following functions defined in `dired.el' have
been REDEFINED or ADVISED HERE:
`dired-sort-dialogue' -
1. Fit frame. 2. Do not add `dired-sort-dialogue-auto-kill-1'
to `kill-buffer-hook'.
`dired-sort-dialogue-close' - Just `kill-buffer'.
`handle-delete-frame' - Do nothing if `buffer-name' is nil.