All of our commands should have an 'action' tag that describes what it does. This was missed for 'tl-shadow-notify'.
The previously missing action tag in `tl-shadow-notify` results in `tl-run-xstartup-feedback` showing `15-tl-shadow-notify` instead of something more informative. This issue was reproduced on 4.12.1 and has been solved in Jenkins build #2065.