use correct syntax for yaml_path
use correct syntax for yaml_path

Signed-off-by: JT Archie <eaa1b062d59544f89acfc47d47757a6daf1b0882@pivotal.io>

pivotal-cf/pcf-pipelines,rahulkj/pcf-pipelines,sandyg1/pcf-pipelines,pivotal-cf/pcf-pipelines,rahulkj/pcf-pipelines,sandyg1/pcf-pipelines,rahulkj/pcf-pipelines,pivotal-cf/pcf-pipelines,sandyg1/pcf-pipelines,pivotal-cf/pcf-pipelines,sandyg1/pcf-pipelines,rahulkj/pcf-pipelines