Add np.longlong

Author: seisman

pygmt/tests/test_clib_to_numpy.py

@@ -86,7 +86,7 @@ def test_to_numpy_python_types(data, expected_dtype):
     pytest.param(np.int16, np.int16, id="int16"),
     pytest.param(np.int32, np.int32, id="int32"),
     pytest.param(np.int64, np.int64, id="int64"),
-    # pytest.param(np.longlong, np.longlong, id="longlong"),
+    pytest.param(np.longlong, np.longlong, id="longlong"),
     pytest.param(np.uint8, np.uint8, id="uint8"),
     pytest.param(np.uint16, np.uint16, id="uint16"),
     pytest.param(np.uint32, np.uint32, id="uint32"),