bug#34915: 27.0.50; Wdired regression with ls -F

[Basil L. Contovounesios]

X-Debbugs-Cc: Stephen Berman <stephen.berman@gmx.net>

The following behaviour is present in master but not emacs-26.
I haven't bisected the issue to Stephen's changes to Wdired, but I
checked that it wasn't caused by Stefan's recent changes to Dired.

0. emacs -Q
1. (progn (setq dired-listing-switches "-Fl")
          (dired (make-temp-file "my-wdired-" t)))
   C-j
2. M-x dired-create-empty-file RET exec RET
3. M +x RET
4. M-x wdired-change-to-wdired-mode RET
5. w C-c C-c
   1 rename actions failed--type ? for details
6. ?
   Rename ‘/tmp/my-wdired-tMSVuW/exec*’ to ‘/tmp/my-wdired-tMSVuW/wexec*’ 
failed:
   (file-missing Renaming No such file or directory
                 /tmp/my-wdired-tMSVuW/exec*
                 /tmp/my-wdired-tMSVuW/wexec*)
7. M-x dired-create-empty-file RET plain RET
8. M-x wdired-change-to-wdired-mode RET
9. w C-c C-c

This wdired-finish-edit succeeds, but instead of only renaming 'plain'
to 'wplain', it also renames 'exec' to 'exec*'.

It seems like Wdired thinks the indicators added by ls (one of */=>@|)
are part of the file name now.

-- 
Basil

In GNU Emacs 27.0.50 (build 4, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll 
bars)
 of 2019-03-19 built on thunk
Repository revision: c0936672876bccc15e7899e83d8ab99910f8feee
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
System Description: Debian GNU/Linux buster/sid

Configured using:
 'configure 'CC=ccache gcc' 'CFLAGS=-O2 -march=native -pipe'
 --config-cache --prefix=/home/blc/.local --with-mailutils
 --with-x-toolkit=lucid --with-modules --with-file-notification=yes
 --with-x'

Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS
GLIB NOTIFY INOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT
LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS LUCID X11 XDBE XIM MODULES THREADS
LIBSYSTEMD JSON PDUMPER LCMS2 GMP