do-run-harness ${suite.filename}.xml with options
${drho.default.options} ${harness.args} to ${harness.output.file}
test-doc-links ${doclink.start.file}
to ${doclink.output.file}-[out|messages].txt
WARNING: verify manually if result code is not 0. Known failures:
- google link nets 403, but works in browser
- progguide/printable.html has harmless empty link to d0e26 (ajc-ref?)