Fixed pretty WKT incompatibility in Test_get_GDAL_ds_inmem class.

Signed-off-by: Daniel Scheffler <danschef@gfz-potsdam.de>

tests/test_io/test_raster/test_gdal.py

@@ -68,6 +68,7 @@ class Test_get_GDAL_ds_inmem(TestCase):
                    AXIS["Northing",NORTH],
                    AUTHORITY["EPSG","32636"]]
             """
+        self.prj = ' '.join(self.prj.split())
 
     def test_2d_array(self):
         ds = get_GDAL_ds_inmem(array=self.arr2d)