Description of problem:
Now 3.9 testing is started, but many plabyooks are still referring "v3.7" as default value in the following grep output, especially openshift_service_catalog/ansible_service_broker/template_service_broker/logging/metrics/openshift_prometheus, need update them to "v3.9"

$ find . -type f|grep -v README|grep -v ansible.spec|grep -v 'v3.7'|grep -v upgrades|xargs grep v3.7
./playbooks/aws/provisioning_vars.yml.example:openshift_release: # v3.7
./utils/src/ooinstall/cli_installer.py:        'major_playbook': 'v3_7/upgrade.yml',
./utils/src/ooinstall/cli_installer.py:        'minor_playbook': 'v3_7/upgrade.yml',
./inventory/hosts.example:openshift_release=v3.7
./inventory/hosts.example:#openshift_image_tag=v3.7.0
./inventory/hosts.example:#openshift_metrics_image_version=v3.7
./inventory/hosts.example:#openshift_metrics_image_version=v3.7
./inventory/hosts.example:#openshift_logging_image_version=v3.7.0
./inventory/hosts.example:#openshift_service_catalog_image_version=v3.7
Binary file ./.git/objects/pack/pack-ebfdf27d9754d5f343abfe0313ddca391f53c462.pack matches
Binary file ./.git/index matches
./roles/openshift_prometheus/vars/openshift-enterprise.yml:l_openshift_prometheus_image_version: "{{ openshift_prometheus_image_version | default('v3.7') }}"
./roles/openshift_prometheus/vars/openshift-enterprise.yml:l_openshift_prometheus_proxy_image_version: "{{ openshift_prometheus_proxy_image_version | default('v3.7') }}"
./roles/openshift_prometheus/vars/openshift-enterprise.yml:l_openshift_prometheus_alertmanager_image_version: "{{ openshift_prometheus_alertmanager_image_version | default('v3.7') }}"
./roles/openshift_prometheus/vars/openshift-enterprise.yml:l_openshift_prometheus_alertbuffer_image_version: "{{ openshift_prometheus_alertbuffer_image_version | default('v3.7') }}"
./roles/template_service_broker/vars/openshift-enterprise.yml:__template_service_broker_version: "v3.7"
./roles/openshift_logging_curator/vars/openshift-enterprise.yml:__openshift_logging_curator_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_logging_elasticsearch/vars/openshift-enterprise.yml:__openshift_logging_elasticsearch_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_logging_elasticsearch/vars/openshift-enterprise.yml:__openshift_logging_elasticsearch_proxy_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_logging_eventrouter/vars/openshift-enterprise.yml:__openshift_logging_eventrouter_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_examples/examples-sync.sh:ORIGIN_VERSION=${1:-v3.7}
./roles/openshift_logging_fluentd/vars/openshift-enterprise.yml:__openshift_logging_fluentd_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_logging_mux/vars/openshift-enterprise.yml:__openshift_logging_mux_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_logging_kibana/vars/openshift-enterprise.yml:__openshift_logging_kibana_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_logging_kibana/vars/openshift-enterprise.yml:__openshift_logging_kibana_proxy_image_version: "{{ openshift_logging_image_version | default ('v3.7') }}"
./roles/openshift_health_checker/test/docker_image_availability_test.py:            openshift_image_tag="v3.7.0-alpha.0",
./roles/openshift_health_checker/test/docker_image_availability_test.py:        "registry.example.com/spam/registry-console:v3.7",
./roles/openshift_health_checker/test/docker_image_availability_test.py:            openshift_image_tag="v3.7.0-alpha.0",
./roles/openshift_health_checker/openshift_checks/docker_image_availability.py:        # enterprise template just uses v3.6, v3.7, etc
./roles/ansible_service_broker/vars/openshift-enterprise.yml:__ansible_service_broker_image_tag: v3.7
./roles/ansible_service_broker/vars/openshift-enterprise.yml:__ansible_service_broker_registry_tag: v3.7
./roles/openshift_metrics/vars/openshift-enterprise.yml:__openshift_metrics_image_version: "v3.7"
./roles/openshift_service_catalog/vars/openshift-enterprise.yml:__openshift_service_catalog_image_version: "v3.7"
./roles/openshift_facts/library/openshift_facts.py:            examples_content_version = 'v3.7'


Version-Release number of the following components:
openshift-ansible master branch
$ git describe
openshift-ansible-3.9.0-0.11.0


How reproducible:

Steps to Reproduce:
1.
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Actual results:
Please include the entire output from the last TASK line through the end of output if an error is generated

Expected results:

Additional info:
Please attach logs from ansible-playbook with the -vvv flag