Revert formatting change

Author: fayazkhan

sqlalchemy_mptt/tests/cases/edit_node.py

@@ -478,13 +478,11 @@ def test_rebuild(self):
                 4                                  14(9)15   18(11)19
         """
 
-        self.session.query(self.model).update(
-            {
-                self.model.left: 0,
-                self.model.right: 0,
-                self.model.level: 0
-            }
-        )
+        self.session.query(self.model).update({
+            self.model.left: 0,
+            self.model.right: 0,
+            self.model.level: 0
+        })
         self.model.rebuild(self.session, 1)
         _level = self.model.get_default_level()
         self.assertEqual(