bug#6294: 24.0.50; `dired-create-directory' needs to add / when -alF

[Drew Adams]

> > 1. This is a regression wrt Emacs 20.  The bug was 
> introduced in Emacs 21.
> 
> ??? Emacs 20 on MS-Windows didn't support the -F switch at all,
> AFAICS.  So I don't understand how can this be a regression wrt
> Emacs 20.  What am I missing?

You're right. In emacs -q for Emacs 20 the / is not supported either.
I was checking with my own setup.

> > 2. Displaying the new dir without the trailing / means that 
> > Dired actions will not work correctly for that entry.
> > For example, you cannot use `x' to delete it after flagging
> > it `D'.  You must first use `g' to update the display to
> > get the /.
> 
> Allright, allright, you convinced me.  No need for more evidence.  I
> even see the bug (and will fix it if no one beats me to it).

Thank you.