I'll try again:
It should be "userns create" without any underscore.
- Bug#1119797: cups-daemon: Apparmor profile blocks spa... Asger Hautop Drewsen
- Bug#1119797: Typo in fix Asger Hautop Drewsen
- Bug#1119797: Typo v2 Asger Hautop Drewsen
I'll try again:
It should be "userns create" without any underscore.