Execute tests from the "bugs/closed" directory.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16794 85f007b7-540e-0410-9357-904b9bb8a0f7
Wrong bug identifier.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@16795 85f007b7-540e-0410-9357-904b9bb8a0f7