pep8: s/updateObUnknownByte2/update_ob_unknown_byte_2/g
pep8: s/updateObUnknownByte2/update_ob_unknown_byte_2/g

amorilia/blender_nif_plugin,amorilia/blender_nif_plugin,nightstrike/blender_nif_plugin,nightstrike/blender_nif_plugin