Wed, 08 Apr 2009 13:19:23 +0200 should give None as rset tls-sprint
sylvain.thenault@logilab.fr [Wed, 08 Apr 2009 13:19:23 +0200] rev 1297
should give None as rset
(0) -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 tip