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

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> How about making char-displayable-p accept an optional argument, a
> frame for which to perform the test?

I thought char-displayable-p worked based on the current frame?  Which
is what we'd want in a truncate-string-visually function (or whatever
it'd be called).  But having that function take an optional frame
parameter wouldn't help with the initialisation of the
'truncate-string-ellipsis' variable (a variable I think is misguided)...

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