bug#65621: [PATCH] `dired-next-line' go to meaningful line

[Drew Adams]

> You can discard them by setting `dired-listing-switches' to an
> appropriate value if you don't like them.  The value is passed to the
> program `ls'.  On MS-Windows things seem to be a little different, not
> sure.

Sorry; I wasn't clear.  It wasn't about not
listing `.' and `..'.  I meant that vanilla
Emacs sometimes doesn't let you apply actions
to those lines.

For example, `dired-toggle-marks' doesn't act
on them.  (Dired+ has an option to decide
whether to do so.)

Anyway, this isn't important here - vanilla
`n' and `p' don't skip over `.' and `..'.