Whitespace normalization.  Ugh, we really need to do this more often.
You might want to review this change as it's my first time.  Be gentle. :-)
diff --git a/Lib/test/test_zipfile.py b/Lib/test/test_zipfile.py
index 45520b5..ec519f6 100644
--- a/Lib/test/test_zipfile.py
+++ b/Lib/test/test_zipfile.py
@@ -514,7 +514,7 @@
         # version of .testzip would swallow this exception (and any other)
         # and report that the first file in the archive was corrupt.
         self.assertRaises(RuntimeError, zipf.testzip)
-        
+
     def tearDown(self):
         support.unlink(TESTFN)
         support.unlink(TESTFN2)
@@ -568,7 +568,7 @@
         fp = open(TESTFN, "wb")
         fp.write(self.data)
         fp.close()
-        
+
     def tearDown(self):
         support.unlink(TESTFN)
         support.unlink(TESTFN2)