bug#45945: 28.0.50; Feature request: Some kind of 'max-window-height' parameter for display-buffer-in-direction

[Dmitry Gutov]

X-Debbugs-CC: rudalics@gmx.at, juri@linkov.net

It will be helpful to limit the height of the resulting window (either
in lines or in percentages of the parent window height). If the split 
has been performed, of course.

At the moment, it can take up almost all of the parent window's height,
and that's not ideal for our use of it in
xref-show-definitions-buffer-at-bottom.