Comment 3 for bug 2040325

The mentioned PR addresses the traceback in handling the --debug parameter with the "cloud-init clean" command. It does not however address the feature request to support `--debug` param for the cloud-init clean subcommand to print actions that are taken by the clean operation. I think this approach to the PR is ok and meets the intent of the original bug as as --debug is not documented as a supported parameter to the specific subcommand represented by `cloud-init clean --help`.