sudo the ctest call to avoid segfault on travis
sudo the ctest call to avoid segfault on travis

mpgerlek/PDAL-old,mpgerlek/PDAL-old,DougFirErickson/PDAL,jwomeara/PDAL,boundlessgeo/PDAL,mpgerlek/PDAL-old,mtCarto/PDAL,radiantbluetechnologies/PDAL,Sciumo/PDAL,jwomeara/PDAL,jwomeara/PDAL,lucadelu/PDAL,Sciumo/PDAL,lucadelu/PDAL,boundlessgeo/PDAL,DougFirErickson/PDAL,radiantbluetechnologies/PDAL,radiantbluetechnologies/PDAL,boundlessgeo/PDAL,DougFirErickson/PDAL,mtCarto/PDAL,lucadelu/PDAL,jwomeara/PDAL,DougFirErickson/PDAL,radiantbluetechnologies/PDAL,mpgerlek/PDAL-old,Sciumo/PDAL,lucadelu/PDAL,Sciumo/PDAL,mtCarto/PDAL,boundlessgeo/PDAL,mtCarto/PDAL