Removing trailing whitespace at line 59, column 51wq

Author: Luca

cscs-checks/microbenchmarks/osu/osu_tests.py

@@ -56,7 +56,7 @@ def __init__(self, variant):
 class FlexAlltoallTest(rfm.RegressionTest):
     def __init__(self):
         self.valid_systems = ['daint:gpu', 'daint:mc',
-                              'dom:gpu', 'dom:mc', 
+                              'dom:gpu', 'dom:mc',
                               'tiger:gpu', 'kesch:cn',
                               'arolla:cn', 'arolla:pn',
                               'tsa:cn', 'tsa:pn']