Change to scale_linewidth instead of scale_size to remove plotting wa…#489

jonjab merged 1 commit intodatacarpentry:maindatacarpentry/r-raster-vector-geospatial:mainfrom

mneilson-usgs:ep_7_fixmneilson-usgs/r-raster-vector-geospatial:ep_7_fixCopy head branch name to clipboard