Fix ceph backup script failing while genrating tar file with timestamp by moving
to double digit hours (%H) from single digit (%k)

Change-Id: Ib00124b4161048db66ebd63afff0463a656de7a5
Closes-Bug: https://mirantis.jira.com/browse/PROD-25181
(cherry picked from commit 6482eaae0e90ffa13baf324d23cadb93ad63a9aa)
2 files changed