bug#16533: 24.3.50; "s" no longer works as documented in dired

[Eli Zaretskii]

> From: Markus Triska <markus.triska@gmx.at>
> Date: Fri, 24 Jan 2014 18:23:43 +0100
> Cc: 16533@debbugs.gnu.org
> 
> Glenn Morris <rgm@gnu.org> writes:
> 
> > What is the value of dired-use-ls-dired?
> 
> Its value is nil. When I start dired after "$ emacs -Q", it displays:
> 
>   ls does not support --dired; see `dired-use-ls-dired' for more details.
> 
> Following the instructions in the documentation of `dired-use-ls-dired',
> I tried Emacs's own emulation of "ls" by evaluating (in "$ emacs -Q"):
> 
>   (setq ls-lisp-use-insert-directory-program nil)
>   (require 'ls-lisp)
> 
> The original problem shows up with this emulation as well.

Aren't you using ls-lisp emulation by default?  What does the
following produce in "emacs -Q"?

  M-: (featurep 'ls-lisp) RET