bug#51821: 29.0.50; Suggest add variable or frame parameter: line-height

[Eli Zaretskii]

> Date: Fri, 19 Nov 2021 15:31:16 +0800 (CST)
> From: tumashu  <tumashu@163.com>
> Cc: "Eli Zaretskii" <eliz@gnu.org>, "Lars Ingebrigtsen" <larsi@gnus.org>, 
>       "51821@debbugs.gnu.org" <51821@debbugs.gnu.org>
> 
> I do not know more about font technology, I just want to:
> 
> when I set a proper line-height-factor, and M-x, 
> minibuffer's height can not change again after I paste Chinese.

That is what's supposed to happen.  If it doesn't happen, please
describe the recipe exactly.

And the value of line-height-factor is supposed to be tuned to the
fonts you use, so if with 1.5 you see a change in the height, try
making the value larger until it doesn't change.