mapbox/mapnik-omnivore — pull request #53 by GretaCB (2014-12-15 18:40:11+00:00)
Title: better tif detection

Per https://github.com/mapbox/mapnik-omnivore/issues/52 and in response to Paul's file https://github.com/mapbox/www.mapbox.com/issues/5098#issuecomment-66314288.

Allow more flexibility for TIF detection. Files are unnecessarily being marked as invalid.

cc @pdgoodman @rclark