Bug#1091179: libconfig-model-dpkg-perl: scan-copyrigths fails on texlive-extra

[Dominique Dumont]

Hi

This failure is due to a combination of issues.

Some author of texlive-extra got creative to specify their copyright years:

- 2023 -20** by Romain NOEL <romainoel at free.fr>
- 2011-.. Maïeul Rouquette

This leads to error when parsing copyright ranges and this triggers the error 
you've seen.

I'll change Software::Copyright to cope with these new ways of specifying a 
copyright.

Another problem is that some copyrights are not utf-8:

texmf-dist/source/latex/beamertheme-gotham/gotham.dtx   LPPL-1.3c       2023 
-20** by Romain NOEL <romainoel at free.fr>
texmf-dist/source/latex/beamertheme-gotham/gotham.ins   LPPL-1.3c       2008 
Romain NOÃL <romainoel at free.fr>
texmf-dist/tex/latex/beamertheme-gotham/beamercolorthemegotham.sty      
UNKNOWN 2023 -20** by Romain NOÃL <romainoel at free.fr>
texmf-dist/tex/latex/beamertheme-gotham/beamerfontthemegotham.sty       
UNKNOWN 2023 -20** by Romain NOÃL <romainoel at free.fr>
texmf-dist/tex/latex/beamertheme-gotham/beamerinnerthemegotham.sty      
UNKNOWN 2023 -20** by Romain NOÃL <romainoel at free.fr>
texmf-dist/tex/latex/beamertheme-gotham/beamerouterthemegotham.sty      
UNKNOWN 2023 -20** by Romain NOÃL <romainoel at free.fr>
texmf-dist/tex/latex/beamertheme-gotham/beamerthemegotham.sty   UNKNOWN 2023 
-20** by Romain NOÃL <romainoel at free.fr>

This also triggers the error you've seen.

I'm going to modify lib/Dpkg/Copyright/Grant/ByDir.pm to tolerate these 
issues, but the resulting copyright may not be as accurate as possible.

I'd suggest you talk with upstream to fix the encoding of the source files.

All the best