fix W293

Author: sahithyaravi

tests/test_evaluations/test_evaluation_functions.py

@@ -116,7 +116,7 @@ def test_evaluation_list_per_fold(self):
         for run_id in evaluations.keys():
             self.assertIsNotNone(evaluations[run_id].value)
             self.assertIsNone(evaluations[run_id].values)
-            
+
     def test_evaluation_list_sort(self):
         openml.config.server = self.test_server
         size = 10