Update test_images.py

Author: smartlixx

lib/cartopy/tests/mpl/test_images.py

@@ -182,7 +182,7 @@ def test_stock_img():
 @pytest.mark.xfail((5, 0, 0) <= ccrs.PROJ4_VERSION < (5, 1, 0),
                    reason='Proj Orthographic projection is buggy.',
                    strict=True)
-@ImageTesting(['imshow_natural_earth_ortho'], tolerance=0.7)
+@ImageTesting(['imshow_etopo1_ortho'], tolerance=0.7)
 def test_stock_img_etopo1():
     ax = plt.axes(projection=ccrs.Orthographic())
     ax.stock_img(name='etopo1')