Escape single quotes twice for target script in ps3 handler.
Escape single quotes twice for target script in ps3 handler.

kasubram/vsts-agent,kasubram/vsts-agent,kasubram/vsts-agent,lkillgore/vsts-agent,Microsoft/vsts-agent,Microsoft/vsts-agent,lkillgore/vsts-agent,Microsoft/vsts-agent,lkillgore/vsts-agent,lkillgore/vsts-agent,kasubram/vsts-agent,Microsoft/vsts-agent