BUG: SDelete 2.05 prints contradictory message for switch -z.

Question

When sdelete 2.05 runs with the switch -z switch it prints a progress message "Cleaning free space on...". When finished, it prints "... drive cleaned."

I expected the messages to indicate that it was Zeroing, and had zeroed, the volume to distinguish its behavior from the -c switch.

This is a concern because the behavior of sdelete's -c and -z switches were swapped a few years ago, so it raises doubt as to precisely what is happening.