[aur-general] Merge request: python-pygraphviz -> python2-pygraphviz

Hi, To follow the python guidelines, could you please merge python-pygraphviz [1] into python2-pygraphviz [2]. Thanks. Clément Démoulins [1] https://aur.archlinux.org/packages/python-pygraphviz/ [2] https://aur.archlinux.org/packages/python2-pygraphviz/ -- Clef PGP : 0xDD51E028