When htdig filled up my root partition I wasn't sure how to shut it down.
I ended up killing all the *dig jobs I saw.

It would be nice to document the proper way to shut it down, and perhaps
even provide a script to do so.

I wanted to stop it so I could recover my disk space and move the files to
a larger partition.

I also second another wishlist item about providing a little more warning
that this can chew up a lot of disk space.