Add live version of sys-app/syndgen-9999 which is python3 only
(Portage version: 2.2.20/hg/Linux x86_64, signed Manifest commit with key )
% -- tex4ht configuration params added by texmf-update --
TEX4HTINPUTS=.;$TEXMF/tex4ht/base//;$TEXMF/tex4ht/ht-fonts//
T4HTINPUTS=.;$TEXMF/tex4ht/base//
% -- tex4ht configuration ends here --