bug#18542: gnome-vfs intermittent test failures

[Mark H Weaver]

gnome-vfs is intermittently failing its 'test-async-cancel' test.  See:

  http://hydra.gnu.org/job/gnu/master/gnome-vfs-2.24.4.i686-linux
  http://hydra.gnu.org/job/gnu/master/gnome-vfs-2.24.4.x86_64-linux

      Mark