As I've come to understand it... since fwupd is in main and it
recommends a package not in main, then it violates policy 2.2.1

Since this directive is a 'must' I've changed the severity to 'serious'
as per the meanings of those severity levels.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)