bug#39822: 27.0.90; Cannot set *Completions* buffer height using display-buffer-alist

[martin rudalics]

> Are you sure about such long name?  This is not a hook, it's just
> an alist entry along with 'window-height' and 'preserve-size'.

You're right, I was confused.

> A good short name would be 'body-function' where 'body' has
> two-fold meaning:
>
> 1. it hints to body of the former macro that it replaces;
>
> 2. body could also mean window body that this function fills.
>
> Here is a completely tested patch that works in all cases:

LGTM.  'body-function' needs an alist entry in the manual then.

Thanks, martin