GPL and unit/conf files

[paul@xxxxxxxxx (Paul Jakma)]

Hi,

logind.conf has a GPL header, as do things like getty at .service.

If I needed to make changes to logind.conf, and wanted to bundle a 
modified logind.conf with a GPL-incompatible application, is that 
allowed? Similarlty, if I wanted to replace getty at .service with my own 
console handler, can I start with a modified getty at .service unit file to 
launch it and bundle that with said application?

Is each setting in those files copyrighted? Or is there some threshold, 
where if I re-use enough of those settings in my file, that the GPL 
applies? Are certain combinations of settings in logind.conf or such 
unit files copyrighted?

Does it even make sense to put these settings/config files under the 
GPL? If a copyright notice is required, might the FSF all-permissive 
licence be better for such files?

(https://www.gnu.org/prep/maintain/html_node/License-Notices-for-Other-Files.html)

regards,
-- 
Paul Jakma | paul at jakma.org | @pjakma | Key ID: 0xD86BF79464A2FF6A
Fortune:
Your education begins where what is called your education is over.