bug#32337: 26.1; display-line-numbers-mode makes cursor ill-aligned when number face is changed

[Carlos Pita]

> If someone seriously wants to do a poll, I can explain how we used to
> do it, and set up the infrastructure.

Maybe it would be too much for this minor issue only, although if the
point is to set a precedent it's ok for me. But since that precedent
would have much more consequences for Eli than for me I don't think
this is my call.