Whitespace normalization.
diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py
index ea25983..180072c 100644
--- a/Lib/test/string_tests.py
+++ b/Lib/test/string_tests.py
@@ -239,7 +239,7 @@
     test('zfill', '', '000', 3)
     test('zfill', '34', '34', 1)
     test('zfill', '34', '0034', 4)
-    
+
     # Encoding/decoding
     codecs = [('rot13', 'uryyb jbeyq'),
               ('base64', 'aGVsbG8gd29ybGQ=\n'),