bug#43244: 28.0.50; Compilation warnings now look a bit odd

[Eric Abrahamsen]

Lars Ingebrigtsen <larsi@gnus.org> writes:

> For instance:
>
> org/ol-gnus.el:271:1: Warning: the function ‘nnir-article-group’ is not known
>     to be defined. Disable showing Disable logging
>
> This is the result of a recent change that was meant to introduce some
> new buttons in the *Warnings* buffer, but they apparently leak...

See Basil's comments on the nnselect branch merge -- I think the problem
is just that nnir-article-group no longer exists...