Description of problem:
The Ansible rpm is mssing the python-passlib dependency (has it only as a build dependency for unit tests, but some functionality needs it as a runtime depenency)

Version-Release number of selected component (if applicable):
2.3.2.0-1.el7

How reproducible:
Easily

Steps to Reproduce:
1. test/runner/ansible-test integration -vvv posix/ci/ --start-at lookups

Actual results:
TASK [lookups : create a password (with salt) file] ****************************
task path: /root/rpmbuild/BUILD/ansible-2.3.2.0/test/integration/targets/lookups/tasks/main.yml:104
fatal: [testhost]: FAILED! => {
    "failed": true, 
    "msg": "An unhandled exception occurred while running the lookup plugin 'password'. Error was a <class 'ansible.errors.AnsibleError'>, original message: passlib must be installed to encrypt vars_prompt values"
}
        to retry, use: --limit @/root/rpmbuild/BUILD/ansible-2.3.2.0/test/integration/lookups-QUKGNg.retry

PLAY RECAP *********************************************************************
testhost                   : ok=21   changed=4    unreachable=0    failed=1   

NOTICE: To resume at this test target, use the option: --start-at lookups
NOTICE: To resume after this test target, use the option: --start-at loops
ERROR: Command "ansible-playbook lookups-QUKGNg.yml -i inventory -e @integration_config.yml -vvv" returned exit status 2.


Expected results:
test succeeds.

Additional info:
We actually have the package in Extras, so this is a matter of just including one Requires: line.