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

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

>> If we're going to be scaling stuff, it'd be nice if there was a setting
>> that was clearly non-scaleable.  An integer value to :height would be
>> possible, but pretty error-prone
>
> How is something like ":height 1" error-prone?

Because people aren't expecting ":height 1" and ":height 1.0" to have
such different semantics.

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