* Give better advice if .dsc/.changes signing fails: if no changes
are needed to the package, user may indeed just debsign and dput.
Closes:#844131.
+ * If we cannot hardlink origs into our extraction area, use symlinks
+ instead. Closes:#844570.
+ * Suppress some leftover debugging output from import-dsc.
+ Closes:#847658.
Test suite:
* Provide and use stunt lintian and debuild, to avoid lintian