Add optional to comment for trusted_certificates
Add optional to comment for trusted_certificates

[#150682365]

pvsone/pcf-pipelines,cah-josephgeorge/pcf-pipelines,cah-josephgeorge/pcf-pipelines,cah-josephgeorge/pcf-pipelines,pivotal-cf/pcf-pipelines,rahulkj/pcf-pipelines,sandyg1/pcf-pipelines,pvsone/pcf-pipelines,sandyg1/pcf-pipelines,pvsone/pcf-pipelines,sandyg1/pcf-pipelines,pivotal-cf/pcf-pipelines,pivotal-cf/pcf-pipelines,rahulkj/pcf-pipelines,sandyg1/pcf-pipelines,pivotal-cf/pcf-pipelines,rahulkj/pcf-pipelines,rahulkj/pcf-pipelines