fix test_linearization from v4.0.0

flake8 error: test_linearization.py:71:5: E741 ambiguous variable name 'l'

this was fixed in: 'update usage of flake8 (OpenModelica#357)' (SHA1: 70cb446)

Author: syntron

tests_v400/test_linearization.py

@@ -67,12 +67,12 @@ def test_getters(tmp_path):
 
     mod.setInputs(name={"u1": 10, "u2": 0})
     [A, B, C, D] = mod.linearize()
-    g = float(mod.getParameters("g")[0])
-    l = float(mod.getParameters("l")[0])
+    param_g = float(mod.getParameters("g")[0])
+    param_l = float(mod.getParameters("l")[0])
     assert mod.getLinearInputs() == ["u1", "u2"]
     assert mod.getLinearStates() == ["omega", "phi"]
     assert mod.getLinearOutputs() == ["y1", "y2"]
-    assert np.isclose(A, [[0, g/l], [1, 0]]).all()
+    assert np.isclose(A, [[0, param_g/param_l], [1, 0]]).all()
     assert np.isclose(B, [[0, 0], [0, 1]]).all()
     assert np.isclose(C, [[0.5, 1], [0, 1]]).all()
     assert np.isclose(D, [[1, 0], [1, 0]]).all()