tor-prompt should handle /events even after tor has died

I set up a chutney network using:

}}}

Then ran tor-prompt using:
{{{
./tor-prompt -i 8000

Then issued:

SETEVENTS AUTHDIR_NEWDESCS

When chutney finishes, it kills the tor instances it started.

And then I tried to get the events from tor-prompt:

/events

But it quit, probably because tor had died.