fix typo
fix typo

See #3, and #4 ...
(is it expected to have generated files in the repository?)
jwomeara/PDAL,mtCarto/PDAL,radiantbluetechnologies/PDAL,boundlessgeo/PDAL,Sciumo/PDAL,jwomeara/PDAL,mpgerlek/PDAL-old,jwomeara/PDAL,mtCarto/PDAL,DougFirErickson/PDAL,boundlessgeo/PDAL,mpgerlek/PDAL-old,DougFirErickson/PDAL,radiantbluetechnologies/PDAL,DougFirErickson/PDAL,mtCarto/PDAL,lucadelu/PDAL,mtCarto/PDAL,radiantbluetechnologies/PDAL,boundlessgeo/PDAL,mpgerlek/PDAL-old,lucadelu/PDAL,boundlessgeo/PDAL,mpgerlek/PDAL-old,DougFirErickson/PDAL,jwomeara/PDAL,Sciumo/PDAL,radiantbluetechnologies/PDAL,Sciumo/PDAL,lucadelu/PDAL,Sciumo/PDAL,lucadelu/PDAL