Update sanitizer to handle '/sources' in pybasedir
Update sanitizer to handle '/sources' in pybasedir

Change-Id: Icafe29f1b64c2ce406f73fa7ebc93f97592c5313

savinash47/openstack-doc-tools,openstack/openstack-doc-tools,openstack/openstack-doc-tools,savinash47/openstack-doc-tools,savinash47/openstack-doc-tools