Whitespace normalization.
diff --git a/Lib/encodings/rot_13.py b/Lib/encodings/rot_13.py
index 532ff64..d5c91da 100644
--- a/Lib/encodings/rot_13.py
+++ b/Lib/encodings/rot_13.py
@@ -16,14 +16,14 @@
     def encode(self,input,errors='strict'):
 
         return codecs.charmap_encode(input,errors,encoding_map)
-        
+
     def decode(self,input,errors='strict'):
 
         return codecs.charmap_decode(input,errors,decoding_map)
 
 class StreamWriter(Codec,codecs.StreamWriter):
     pass
-        
+
 class StreamReader(Codec,codecs.StreamReader):
     pass