diff --git a/Lib/doctest.py b/Lib/doctest.py
index 67907a5..988707b 100644
--- a/Lib/doctest.py
+++ b/Lib/doctest.py
@@ -2014,7 +2014,7 @@
       >>> doctest._unittest_reportflags == (REPORT_NDIFF |
       ...                                   REPORT_ONLY_FIRST_FAILURE)
       True
-      
+
     Only reporting flags can be set:
 
       >>> set_unittest_reportflags(ELLIPSIS)
@@ -2036,17 +2036,17 @@
 
     if nrflags:
         raise ValueError("Invalid flags passed", flags)
-    
+
     global _unittest_reportflags
     old = _unittest_reportflags
     _unittest_reportflags = flags
     return old
-    
+
 
 class FakeModule:
     """Fake module created by tests
     """
-    
+
     def __init__(self, dict, name):
         self.__dict__ = dict
         self.__name__ = name
@@ -2065,7 +2065,7 @@
 
     def setUp(self):
         test = self._dt_test
-            
+
         if self._dt_setUp is not None:
             self._dt_setUp(test)
 
@@ -2082,12 +2082,12 @@
         old = sys.stdout
         new = StringIO()
         optionflags = self._dt_optionflags
-        
+
         if not (optionflags & valid_unittest_reportflags):
             # The option flags don't include any reporting flags,
             # so add the default reporting flags
             optionflags |= _unittest_reportflags
-        
+
         runner = DocTestRunner(optionflags=optionflags,
                                checker=self._dt_checker, verbose=False)
 
@@ -2327,7 +2327,7 @@
 
     optionflags
        A set of doctest option flags expressed as an integer.
-      
+
     """
     suite = unittest.TestSuite()
 
diff --git a/Lib/test/test_doctest.py b/Lib/test/test_doctest.py
index 53798ab..2b39e33 100644
--- a/Lib/test/test_doctest.py
+++ b/Lib/test/test_doctest.py
@@ -1797,7 +1797,7 @@
        Here, we didn't need to use a tearDown function because we
        modified the test globals.  The test globals are
        automatically cleared for us after a test.
-       
+
        """
 
 def test_trailing_space_in_test():
@@ -1848,7 +1848,7 @@
           NameError: name 'favorite_color' is not defined
       <BLANKLINE>
       <BLANKLINE>
-      
+
     We get only the first failure.
 
     If we give any reporting options when we set up the tests,