bug#58168: string-lessp glitches and inconsistencies

[Mattias Engdegård]

7 okt. 2022 kl. 17.33 skrev Eli Zaretskii <eliz@gnu.org>:

> I'd prefer to show it in octal, not in hex

Then octal it is, and the patch has now been pushed with that modification.

> I think the more values we test the better.  The codepoints between
> #x80 and #xA0 in particular are treated differently than those above
> #xA0, so at least one from each range should be beneficial.

The patch already does ensure that we test one from each (#x80 and #xFC); I've 
now added a third to alleviate your concerns.
Updated patch attached.

0001-Improve-manual-display-tests-of-undisplayable-chars-.patch
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