Whitespace normalization.
diff --git a/Lib/codecs.py b/Lib/codecs.py
index bdc8d02..b3c2f71 100644
--- a/Lib/codecs.py
+++ b/Lib/codecs.py
@@ -574,7 +574,7 @@
         else:
             m[v] = None
     return m
-    
+
 ### Tests
 
 if __name__ == '__main__':