Lintian tag information: copyright-without-copyright-notice (type: warning)

Description (from lintian-explain-tags)

The copyright file for this package does not appear to contain a copyright
notice. You should copy the copyright notice from the upstream source (or
add one of your own for a native package). A copyright notice must consist
of Copyright, Copr., or the Unicode symbol of C in a circle followed by
the years and the copyright holder. A copyright notice is not required for
a work to be copyrighted, but Debian requires the copyright file include
the authors and years of copyright, and including a valid copyright notice
is the best way to do that. Examples:

Copyright YYYY Firstname Lastname <address@example.com>
Copr. YYYY-YYYY Firstname Lastname <address@example.com>
© YYYY,YYYY Firstname Lastname <address@example.com>

If the package is in the public domain rather than copyrighted, be sure to
mention "public domain" in the copyright file. Please be aware that this
is very rare and not the same as a DFSG-free license. True public domain
software is generally limited to such special cases as a work product of a
United States government agency.

Please refer to https://ftp-master.debian.org/REJECT-FAQ.html for details.

Visibility: warning
Show-Always: no
Check: debian/copyright

Show affected packages