Whitespace normalization.
diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index a9668aa..25fad18 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -361,7 +361,7 @@
         WalkTests,
         MakedirTests,
         DevNullTests,
-        URandomTests	
+        URandomTests
     )
 
 if __name__ == "__main__":