Copyright for sysvbanner source package in Mantic

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: SYSVbanner
Source: David Frey, the first packager said: "I took the program off
        Infomagic's Usenet CD-ROM (1994)".
Comment: the upstream said:
         "This is a PD version of the SYS V banner program (at least I think
          it is compatible to SYS V) which I wrote to use with the clock
          program written by:
               DCF, Inc.
               14623 North 49th Place
               Scottsdale, AZ 85254
          and published in the net comp.sources.misc newsgroup in early July
          since the BSD banner program works quite differently."

Files: *
Copyright: 1988 Brian Wallis 
License: public-domain

Files: debian/*
Copyright: 1997-2009 David Frey 
           2009      Ryan Niebur 
           2017      Joao Eriberto Mota Filho 
           2020-2023 Ricardo Mones 
License: public-domain

License: public-domain
 There is no copyright or responsibility accepted for the use of this software.