DNS fix (Re: [Bro-Commits] [git/bro] master: Updating CHANGES and VERSION.) (e24f3f5)

I messed up the commit message here. This was supposed to be this:

    Fix duplicate DNS log entries.

    An earlier change to clear state didn't have the intended effect;
    fixed by using a bif instead.

    Without this fix it could still happen that DNS entries got logged
    multiple times, I saw a case where dns.log grew by a factor of
    more than 10. I guess this might also have caused some of the
    trouble with logging on the manager, just by nature of the
    additional volume.

In fact, I'm wondering if this could explain memory trouble as well.
Does this help with worker problems by any chance?