trailing whitespace

tutorial/mpi4py/mpi4py_portable.py

@@ -29,7 +29,7 @@ class EESSI_MPI4PY(rfm.RunOnlyRegressionTest):
     valid_systems = ['*']
 
     # ReFrame will generate a test for each module
-    # NOTE: each parameter adds a new dimension to the parametrization space. 
+    # NOTE: each parameter adds a new dimension to the parametrization space.
     # (EG 4 parameters with (3,3,2,2) possible values will result in 36 tests).
     # Be mindful of how many parameters you add to avoid the number of tests generated being excessive.
     # https://reframe-hpc.readthedocs.io/en/stable/regression_test_api.html#reframe.core.builtins.parameter