Update tests/test_grids.py

Author: VeckoTheGecko

tests/test_grids.py

@@ -870,7 +870,7 @@ def UpdateR(particle, fieldset, time):  # pragma: no cover
     assert np.allclose(pset.radius, pset.radius_start, atol=10)
 
 
-@pytest.mark.parametrize("gridindexingtype", ["mom5"])  # TODO add pop in v4?
+@pytest.mark.parametrize("gridindexingtype", ["mom5"])  # TODO v4: add pop in params?
 @pytest.mark.parametrize("extrapolation", [True, False])
 def test_bgrid_interpolation(gridindexingtype, extrapolation):
     xi, yi = 3, 2