Re: argp --help formatting bug with non-ASCII characters

[Bruno Haible]

Hi Collin,

> This patch fixes the two examples that you gave. I think it may be
> missing the case where the buffer doesn't end in a partial line
> though.

There are probably some other cases that are not handled either.
The code is ca. 200 lines of considerations of columns and widths
here and there.

> I have a feeling it is necessary, but I don't have a test case to make
> sure I don't break things.

So, my feeling would be that the first thing to do is to create a new
unit test for it:
  1. so that we don't need to build and try GNU tar in order to see
     whether there is a regression in the future,
  2. so as to cover the tricky cases as well (such as, near the end of
     a line, a word that ends in 'Ä' or in some width 2 character).

Bruno