Document the unsubscription method, please?

I subscribed before the the mechabics of the dev list changed, nd now
can't figure out how to unsubscribe. the page at

      http://subversion.apache.org/mailing-lists.html

tells me nothing, and email to dev-unsubscribe_at_subversion.apache.org just
seems to disappear.

Please document an unsubscription method.

-- 
		Eric S. Raymond
It will be of little avail to the people, that the laws are made by
men of their own choice, if the laws be so voluminous that they cannot
be read, or so incoherent that they cannot be understood; if they be
repealed or revised before they are promulgated, or undergo such
incessant changes that no man, who knows what the law is to-day, can
guess what it will be to-morrow. Law is defined to be a rule of
action; but how can that be a rule, which is little known, and less
fixed?	-- James Madison, Federalist Papers 62