Fixed flakeheaven complaints maybe?

Author: Thomas Baumann

pySDC/implementations/controller_classes/controller_nonMPI.py

@@ -39,7 +39,7 @@ def __init__(self, num_procs, controller_params, description):
             for _ in range(num_procs - 1):
                 self.MS.append(dill.copy(self.MS[0]))
         # if this fails (e.g. due to un-picklable data in the steps), initialize seperately
-        except dill.PicklingError and TypeError:
+        except (dill.PicklingError, TypeError):
             self.logger.warning('Need to initialize steps separately due to pickling error')
             for _ in range(num_procs - 1):
                 self.MS.append(stepclass.step(description))