Comment 30 for bug 1891673

bionic-queens verified with [Test Case] and output is:

# apt-cache policy neutron-common
neutron-common:
  Installed: 2:12.1.1-0ubuntu2
  Candidate: 2:12.1.1-0ubuntu2
  Version table:
 *** 2:12.1.1-0ubuntu2 500
        500 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     2:12.1.1-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
     2:12.0.1-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
# ./discover_ip_rules_affected_by_lp1891673.sh
Nothing to cleanup - exiting.