[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

mbuild/tests/test_compound.py

@@ -89,7 +89,7 @@ def test_load_conversion(self, ethane, h2o):
         assert np.allclose(test_converted1.xyz, test_converted2.xyz)
 
     def test_load_xyz(self):
-        myethane = mb.load(get_fn("ethane.xyz")) 
+        myethane = mb.load(get_fn("ethane.xyz"))
         assert myethane.n_particles == 8
         assert myethane.n_bonds == 0
         assert len(myethane.children) == 1