bug#43789: 27.1; Dired cannot handle file which name contains linebreak

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Date: Mon, 05 Oct 2020 11:30:50 +0200
> Cc: 43789@debbugs.gnu.org
> 
> "Zhu Zihao" <all_but_last@163.com> writes:
> 
> > Step to reproduce:
> >
> > 1. Use touch from coreutils or find-file in Emacs to create a file
> > which name contains a linebreak. (e.g. "line\nbreak")
> > 2. Visit it in dired, you cannot do anything with this file because
> > the characters after "\n" was ignored by dired.
> 
> I recommend to avoid file names containing line breaks. Tramp, for
> example, cannot handle them at all.

Cannot agree more.  And I think we shouldn't tweak our implementation
too much for such use cases, given that there's an easy workaround.