third-party-report.html not well formed

[etschelp]

I want to apply a xslt transformation to the html report, unfortunately this is not possible because of a missing </td>. The fix is actually quite simple. Add the following to line 217 of the AbstractLicenseReportRenderer.java

        sink.tableCell_();

[slawekjaranowski]

Is it still valid?

Fix looks a simple ... please create PR.