Fix esdelete

This fixes something I borked a few days ago. It's just used by devs and rarely,
so just a cursory look-over is good.

The backstory is that I thought I read in the django docs that 'interactive' was a
standard option like 'verbosity' that all commands had. Turns out that's not
true or it's not true of pre-1.5--I didn't look into it.

Anyhow, this fixes the bug caused by that misunderstanding.

tiny cursory r?