crowbar/barclamp-glance — pull request #93 by mvidner (2013-06-21 13:16:15+00:00)
Title: Don't hardcode the username in cron files (bnc#826117).

In our tests it surfaced in /etc/cron.d/glance-scrubber.
In SUSE packages the user is openstack-glance.

Regarding possible other occurrences of the bug: AFAIK the only other barclamp with cron files is swift and there the username is variable already.