SConstruct: shortest_name is a one-liner
SConstruct: shortest_name is a one-liner

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