Incorporate Markus Kuhn's wcwidth() (as xo_wcwidth)
Incorporate Markus Kuhn's wcwidth() (as xo_wcwidth)

Juniper/libxo,xcllnt/libxo,xcllnt/libxo,Juniper/libxo,xcllnt/libxo,Juniper/libxo,Juniper/libxo,xcllnt/libxo