bug#41250: 28.0.50; Dired displays unconditionally ls-switches on modeline

[Juri Linkov]

> 5ec2115 seems to cause a build failure in some cases.
> Ref https://hydra.nixos.org/build/128075429

I tried to bootstrap several times, but can't reproduce the error.

Here are the relevant parts of the hydra log:

  make -C ../leim all EMACS="../src/bootstrap-emacs"
    GEN      ../lisp/leim/ja-dic/ja-dic.el
    INFO     Processing OKURI-ARI entries
    INFO     Processing POSTFIX entries
  Loading macroexp.elc...
  Invalid read syntax: "?"
  make[3]: *** [Makefile:143: ../lisp/leim/ja-dic/ja-dic.el] Error 255

When I tried the command

  make -C leim all EMACS="../src/bootstrap-emacs"

its output was:

  GEN      ../lisp/leim/ja-dic/ja-dic.el
  INFO     Processing OKURI-ARI entries
  INFO     Processing POSTFIX entries
Source file `lisp/international/mule-util.el' newer than byte-compiled file; 
using older file
  INFO     Processing PREFIX entries
...
  INFO     Processing OKURI-NASI entries...done

and successfully finished.  The interesting line is

  "Source file `lisp/international/mule-util.el' newer"

this means that skkdic-convert-postfix in ja-dic-cnv.el
calls set-nested-alist that autoloads mule-util.el.

So the question is why loading mule-util.el produces this error?

It seems loading can't parse this recently added line:

  (char-displayable-p ?…)

and gives the error `Invalid read syntax: "?"`.

Maybe this Unicode character should be replaced in the source file
with its name:

  (char-displayable-p ?\N{HORIZONTAL ELLIPSIS})