bug#64420: string-width of … is 2 in CJK environments

[Dmitry Gutov]

Found the problem:

On 12/07/2023 04:17, Dmitry Gutov wrote:
>       (window-text-pixel-size nil nil nil t))))))

Looks like commit 61c254cafc9caa3b added the special meaning for the 
value t for arguments X-LIMIT and Y-LIMIT. It in the previous versions, 
I guess, it meant the same as 0. They also did't accept 
most-positive-fixnum, but worked okay with some lower integer values.