Whitespace normalization.
diff --git a/Lib/threading.py b/Lib/threading.py
index 4906674..fbf40cd 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -489,12 +489,12 @@
 
 class _Timer(Thread):
     """Call a function after a specified number of seconds:
-    
+
     t = Timer(30.0, f, args=[], kwargs={})
     t.start()
     t.cancel() # stop the timer's action if it's still waiting
     """
-    
+
     def __init__(self, interval, function, args=[], kwargs={}):
         Thread.__init__(self)
         self.interval = interval
@@ -502,11 +502,11 @@
         self.args = args
         self.kwargs = kwargs
         self.finished = Event()
-    
+
     def cancel(self):
         """Stop the timer if it hasn't finished yet"""
         self.finished.set()
-    
+
     def run(self):
         self.finished.wait(self.interval)
         if not self.finished.isSet():