Lintian Fixes - maven-clean-plugin

Ready changes

Merge these changes:

Summary

Diff

Unable to retrieve diff; error 500

Debdiff

Error retrieving debdiff: Unable to get debdiff: 500 Internal Server Error

500 Internal Server Error

Server got itself in trouble

Run locally

Try this locally (using the lintian-brush package):

debcheckout maven-clean-plugin
cd maven-clean-plugin
lintian-brush --exclude=upstream-metadata-file

More details

Full run details