Return empty string when no Vuln description is found and no url is found
Return empty string when no Vuln description is found and no url is found

rackerlabs/django-DefectDojo,OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,OWASP/django-DefectDojo,OWASP/django-DefectDojo,rackerlabs/django-DefectDojo,OWASP/django-DefectDojo