Fix GRASS data folder permissions (#868)
Fix GRASS data folder permissions (#868)

OSGeo/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,OSGeo/OSGeoLive,OSGeo/OSGeoLive,kalxas/OSGeoLive,kalxas/OSGeoLive,OSGeo/OSGeoLive,kalxas/OSGeoLive,OSGeo/OSGeoLive,OSGeo/OSGeoLive,OSGeo/OSGeoLive