Description of problem:
Config "openshift_buildoverrides_force_pull=true" in inventory hosts file, installer would fail at task "openshift_examples : Import RHEL streams" due to master service already failed during installation.

Version-Release number of selected component (if applicable):
openshift-ansible-3.5.1-1.git.0.e23e9bf.el7.noarch.rpm

How reproducible:
always

Steps to Reproduce:
1.cat inventory_hosts

<--snip-->
openshift_buildoverrides_force_pull=true
<--snip-->

2.Run BYO playbook
3.

Actual results:

1) Installer failed at task:
TASK [openshift_examples : Import RHEL streams] ********************************
Thursday 19 January 2017  11:00:55 +0000 (0:00:00.080)       0:09:27.999 ****** 
failed: [openshift-131.lab.sjc.redhat.com] (item=/usr/share/openshift/examples/image-streams/image-streams-rhel7.json) => {"changed": false, "cmd": ["oc", "create", "-n", "openshift", "-f", "/usr/share/openshift/examples/image-streams/image-streams-rhel7.json"], "delta": "0:00:00.299864", "end": "2017-01-19 06:00:55.830511", "failed": true, "failed_when_result": true, "item": "/usr/share/openshift/examples/image-streams/image-streams-rhel7.json", "rc": 1, "start": "2017-01-19 06:00:55.530647", "stderr": "The connection to the server openshift-131.lab.sjc.redhat.com:8443 was refused - did you specify the right host or port?", "stdout": "", "stdout_lines": [], "warnings": []}
failed: [openshift-131.lab.sjc.redhat.com] (item=/usr/share/openshift/examples/image-streams/dotnet_imagestreams.json) => {"changed": false, "cmd": ["oc", "create", "-n", "openshift", "-f", "/usr/share/openshift/examples/image-streams/dotnet_imagestreams.json"], "delta": "0:00:00.312209", "end": "2017-01-19 06:00:56.649140", "failed": true, "failed_when_result": true, "item": "/usr/share/openshift/examples/image-streams/dotnet_imagestreams.json", "rc": 1, "start": "2017-01-19 06:00:56.336931", "stderr": "The connection to the server openshift-131.lab.sjc.redhat.com:8443 was refused - did you specify the right host or port?", "stdout": "", "stdout_lines": [], "warnings": []}

2) Check master service
Jan 19 06:21:40 openshift-131.lab.sjc.redhat.com atomic-openshift-master[16619]: F0119 06:21:40.880774   16619 start_master.go:724] Could not start build controller: could not load config file "/tmp/admission-plugin-config352180080" due to an error: error reading config: [pos 32]: json: decode bool: got first char "

3) Check master config
# cat /etc/origin/master/master-config.yaml |grep force
        forcePull: 'true'

4) Remove additional single quotes in master-config.yaml, then master service was able to restart successfully.
# cat /etc/origin/master/master-config.yaml |grep force
        forcePull: true


Expected results:


Additional info: