All reports of copyright-with-old-dh-make-debian-copyright for the archive. The extended description of this tag is:
The copyright file contains the incomplete Debian packaging copyright boilerplate from older versions of dh_make. (C) alone is not considered a valid copyright notice in some countries. The word Copyright or the © symbol should be used instead or in addition to (C).
Copyright notices like this are, in any country that's a signatory to the Berne Convention, not required to claim copyright on a work, but their presence may allow claiming additional damages should a copyright case go to court. If you provide a notice, you may as well provide one that's legally recognized in a broader range of countries.
This tag has not been emitted in any package tested by Lintian.