fix whitespace woes
diff --git a/Lib/xml/etree/ElementTree.py b/Lib/xml/etree/ElementTree.py
index be6cf11..ea4fa7a 100644
--- a/Lib/xml/etree/ElementTree.py
+++ b/Lib/xml/etree/ElementTree.py
@@ -1189,7 +1189,7 @@
     """
     def __init__(self, lst):
         self.lst = lst
-        
+
     def writable(self):
         return True