Code review comment for ~roxanan/ubuntu/+source/systemd:5.15.0-bt-sysctl-issue

This does match what we have in jammy and newer, and matches https://github.com/systemd/systemd/commit/0af05e485a3a88f454c714901eb6109307dc893e.

We will want to bundle some other changes in with a focal SRU, but I think this should be included. Please fill out the SRU template on the bug report.