bug#5597: Dired unable to properly recognize file names

[Eli Zaretskii]

> From: Lars Magne Ingebrigtsen <larsi@gnus.org>
> Date: Sun, 18 Sep 2011 13:59:05 +0200
> Cc: 5597@debbugs.gnu.org, Otto Maddox <ottomaddox@fastmail.fm>
> 
> Speaking of which, is there any particular reason why dired still uses
> an external program?  If it's because `ls-lisp' is too slow

I don't think it's slow on a Posix system, where the `stat' function
is highly optimized and very fast.  I think the main reasons are 
(a) inertia, and (b) ls-lisp doesn't support all of the switches
available with GNU `ls'.