Uses dh_listpackages which needs dephelper, missing dependency

This bug was fixed in the package autopkgtest - 2.16

---------------
autopkgtest (2.16) unstable; urgency=medium

  * adt-buildvm-ubuntu-cloud: Use "-monitor null" instead of "-monitor none",
    as the latter does not work with older Qemu versions.
  * adt-virt-qemu: Don't call qemu-img with -q option, it doesn't exist in
    older Qemu versions yet. Redirect stdout instead.
  * tools/adt-setup-vm: Disable downloading of package translations to save
    some bandwidth. Thanks Jean-Baptiste Lallement.
  * adt-virt-qemu: Fix race condition that caused a ValueError when the exit
    code file was not written yet.
  * adt-virt-qemu: Automatically detect a normal user to run tests as, unless
    -u is given. This works similarly to -lxc.
  * Add tests for adt-virt-user with non-default users.
  * adt-virt-qemu: Disable shared downtmp for now, it breaks on older Qemu
    versions and the current setup does not work with different UIDs in the
    testbed.
  * adt-virt-qemu: Use file locks for host-side ssh port forwards to avoid
    race condition.
  * adt-run: Drop usage of dh_listpackages, it needs debhelper which is an
    undeclared (and also unwanted) dependency. Parse debian/control directly
    and make use of our existing arch tag resolution. (LP: #1312276)
  * adt-virt-qemu: Copy host's timezone into VM to avoid time zone skew when
    copying files.
  * adt-virt-qemu: Show determined normal user instead of <user> in ssh
    message, to get a fully copy&pasteable command.
  * adt-virt-qemu: Ensure tests which run as root have $HOME set.
  * Fix --proposed option to also apply to sources.list.d/* lists and to
    multiple sources. (LP: #1313278)
  * adt-buildvm-ubuntu-cloud: Install haveged, to avoid failing tests due to
    running out of entropy.
  * adt-virt-qemu: Add --qemu-options for passing additional options to QEMU.
    Thanks Diogo Matsubara!

 -- Martin Pitt <email address hidden> Sun, 27 Apr 2014 22:37:15 +0200