Enforce the verification of repo dict
Enforce the verification of repo dict

If user_external_repo is not defined, the complete task should be
skipped. However, ansible checks and borks if the dict doesn't
contain repo, so we add a condition to avoid this.

Change-Id: Ic85187f833bf754fed2ef256ae053cc4a270d69e

openstack/openstack-ansible-pip_install,openstack/openstack-ansible-pip_install,os-cloud/openstack-ansible-pip_install,os-cloud/openstack-ansible-pip_install