* Ole Streicher <olebole@debian.org>, 2015-05-26, 11:30:
If the package is in the public domain rather than copyrighted, be sure to mention "public domain" in the copyright file.The copyright format [1] requires "public-domain" as tag. The version with spaces is not specified.We should fix Lintian to recognize "public-domain", too.The version with spaces is just wrong, according to the copyright format description, and leads to space-in-std-shortname-in-dep5-copyright instead.
Err, it's not "wrong". Lintian doesn't ask you to put "public domain" in the License field, but in the copyright file.
copyright-without-copyright-notice is not specific to the machine-readable copyright files. In fact it was implemented years before DEP-5 even existed.
Just submitted a bug [2]. Since it is one among ~350 other lintian bugs, it will probably take some time to get fixed (if ever).
Usually one-line fixes like this get applied quickly. -- Jakub Wilk