I have an app that stores the keyring to the legacy trusted.gpg location and getting the following error:
W: https://packagecloud.io/slacktechnologies/slack/debian/dists/jessie/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
I have followed this great answer here https://askubuntu.com/a/1398346/827401, and modified the .list file in question that causes this. However, the application (slack) keeps on editing the .list file, removing the part when the manual fix/hack was implemented by the aforementioned answer.
There is of course the comment in the .list file that warns about this:
### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
How does one prevent apt (and to an extent the maintainer of said package) to NOT modify a particular .list file?
