bug#29972: 25.3; dired-hide-details-mode does not persist in desktop session

[Drew Adams]

> We need to figure out some way for desktop.el to record
> dired-hide-details-mode, either automatically or given user
> customizations.
> 
> It's possible that looking at minor-mode-list (not minor-mode-alist!)
> is such a way.

Yes, that's no doubt possible.  Perhaps it's also possible
to make changes to variable `dired-hide-details-mode' change
the mode.  If so then you could just add that variable to
the default value of `desktop-locals-to-save'.  And since
that's a user option, users could then control whether that's
the behavior they want, i.e., whether desktop should restore
whether details were shown/hidden.