.travis.yml - use 'brew list --formula` + `brew link git`
.travis.yml - use 'brew list --formula` + `brew link git`

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