commit 719a4f385cfe431a9d42c18943c3e87d0d4ac405
Author: Tom Hughes <tom@compton.nu>
Date:   Tue Jan 29 10:00:16 2019 +0000

    Patch some test differences for gdal 2.3.x

diff --git a/test/datasource.test.js b/test/datasource.test.js
index 710f1891..dd2f85df 100644
--- a/test/datasource.test.js
+++ b/test/datasource.test.js
@@ -85,7 +85,7 @@ describe('mapnik.Datasource', function() {
                 LAT: 'Number'
             },
             geometry_type: 'polygon',
-            proj4:'+proj=merc +lon_0=0 +lat_ts=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs'
+            proj4:'+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs'
         };
         var actual = ds.describe();
         assert.equal(actual.proj4, expected.proj4);