[bug#44625] [PATCH] gnu: Add b4.

[Kyle Meyer]

Christopher Baines writes:

> Thanks Kyle, I tweaked the formatting of the description, just adding a
> newline as I thought it looked better, and pushed this to master as
> 3b77ba78684e201382b1c28f2618252205891568.

The tweaked formatting looks good to me.

Thanks!