correct the test suit of PWMAT-MOVEMENT

Author: liuliping0315

tests/pwmat/ref_force

@@ -1,5 +1,5 @@
-   0.046108800185045        -0.541030624050995        -0.582488361151274
-   -0.557355742114270        -0.117761039586375        -0.114745145937041
-   0.336673769321572         0.649100915564952         0.057748752039102
-   -0.123335960183960         0.122383035499940        -0.332495374793973
-   0.301171890086218        -0.108713996525315         0.974385263713461
+   -0.046108800185045        0.541030624050995        0.582488361151274
+   0.557355742114270        0.117761039586375        0.114745145937041
+   -0.336673769321572       -0.649100915564952         -0.057748752039102
+   0.123335960183960         -0.122383035499940        0.332495374793973
+   -0.301171890086218        0.108713996525315         -0.974385263713461

tests/test_pwmat_movement.py

@@ -48,7 +48,7 @@ def test_force(self) :
         fp.close()
 
     def test_energy(self) :
-        ref_energy = -0.2193369388E+03
+        ref_energy = -0.2196929065E+03
         self.assertEqual(self.system.data['energies'][0], ref_energy)