If Jenkins has attempted to sudo during a tox run, fail the
test.
Also, remove "-e" from run-tox, so that pip freeze always runs.
Change-Id: I98230e4de03667f15f119fac45e1eba0ac249c1c
Reviewed-on: https://review.openstack.org/12458
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins