upgrade to the latest `variant`
upgrade to the latest `variant`

mapnik/mapnik,lightmare/mapnik,tomhughes/mapnik,mapnik/mapnik,lightmare/mapnik,naturalatlas/mapnik,lightmare/mapnik,lightmare/mapnik,tomhughes/mapnik,mapnik/mapnik,tomhughes/mapnik,naturalatlas/mapnik,mapnik/mapnik,naturalatlas/mapnik,naturalatlas/mapnik,tomhughes/mapnik