bug#11795: 24.1.50; wdired: C-c C-c loses marks and positions of renamed files

[Juri Linkov]

> But shouldn't Wdired respect the user's setting of option
> `dired-keep-marker-rename'?  IOW, shouldn't users be able to control whether
> exiting wdired removes marks?

When `dired-keep-marker-rename' is customized to a character like ?R or ?M,
now `wdired-finish-edit' adds a new marker on the files renamed by wdired.
This is new behavior.  Strictly speaking, it is consistent with the meaning
of `dired-keep-marker-rename', so I'm not sure if a new option is necessary
to control this.  But at least when someone wants to put markers only on the
files moved by `dired-do-rename', but not on the files renamed by wdired,
this is still possible to do by adding to ~/.emacs something like:

  (defadvice wdired-finish-edit (around my-wdired-finish-edit act)
    (let ((dired-keep-marker-rename t))
      ad-do-it))