TOOLS-321: eng.git mdata-get calls need pfexec prefix
TOOLS-321: eng.git mdata-get calls need pfexec prefix

arekinath/sdc-cloudapi,misterbisson/sdc-cloudapi,joyent/sdc-cloudapi,KrisShannon/sdc-cloudapi,misterbisson/sdc-cloudapi,joyent/sdc-cloudapi,arekinath/sdc-cloudapi,KrisShannon/sdc-cloudapi