backup operator: fixed incorrect backup file naming convention.
When limiting the number of backups, if the revision would move to needing another digit, the logic would never select a new entry as _ is > to 9 in ascii terms.
Note that this is backwards incompatible as now files receive a correct padding and old revisions will still be incorrectly handled.
Can one of the admins verify this patch?
Can one of the admins verify this patch?
Can one of the admins verify this patch?
@etcd-bot ok to test
@kapouille it looks like we missed this line in the tests
https://github.com/coreos/etcd-operator/blob/86211e9f3bc32cd97187c7ee9beb32be60264fed/test/e2e/e2eslow/backup_restore_test.go#L55