Re: 14.1-R rc.conf/ifconfig netmask issue was really hard to figure out

From: Ed Maste <emaste_at_freebsd.org>
Date: Thu, 13 Jun 2024 21:42:23 UTC 
On Wed, 12 Jun 2024 at 14:08, Ed Maste <emaste@freebsd.org> wrote:
>
> As for the path forward, what do folks think about changing the
> warning into an error in main in the near future (prior to 15.0)? That
> would provide about four years of releases that emit the warning,
> hopefully enough time for users to notice and update their
> configuration.

I opened a review in https://reviews.freebsd.org/D45585 to turn it
into an error. I've intentionally made it a minimal change to avoid
conflicts on future MFCs; it could be cleaned up and simplified once
older branches pass EOL.