[gentoo-user] emerge default config

[shawn wilson]

Is there a way to have default config lines that emerge updates won't touch?

For instance, my /etc/ssh/sshd_config differs from the default in some
places. I know this and upstream shows me the same diffs in that file
over and over again. But maybe upstream will add a new option - I'd
like to see that (obviously I'd miss out on new crypto types if I
ignored that line, but that's ok - I keep up on that anyway). There
are obviously other places in other files as well - logrotate
retention comes to mind as well.