Whitespace normalization.
diff --git a/Lib/xml/dom/pulldom.py b/Lib/xml/dom/pulldom.py
index b2e1a46..18f49b5 100644
--- a/Lib/xml/dom/pulldom.py
+++ b/Lib/xml/dom/pulldom.py
@@ -236,7 +236,7 @@
 
     def __iter__(self):
         return self
-    
+
     def expandNode(self, node):
         event = self.getEvent()
         parents = [node]