The French and Brazilian Portuguese man page translations have not been
updated since the switch from public domain to 0BSD. The old GPLv2
strings have now been removed from these files.
That's how it is preferred at the Translation Project.
On my system /usr/share/man/fr_FR doesn't contain any
other man pages than XZ Utils while /usr/share/man/fr
has quite a few, so this will fix that too.
Thanks to Benno Schulenberg from the Translation Project.