Merged revisions 81267 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r81267 | victor.stinner | 2010-05-17 16:36:43 +0200 (lun., 17 mai 2010) | 2 lines

  Improve test_exit() error message to analyze sparc failures
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diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index b3a0676..903ad91 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -144,7 +144,8 @@
                                        stderr=subprocess.PIPE)
             stdout, stderr = process.communicate()
             self.assertEqual(process.returncode, 1)
-            self.assertTrue(stderr.startswith(expected), stderr)
+            self.assertTrue(stderr.startswith(expected),
+                            "%r doesn't start with %r" % (stderr, expected))
 
         # test that stderr buffer if flushed before the exit message is written
         # into stderr