Raise statement normalization in Lib/test/.
diff --git a/Lib/test/test_threadsignals.py b/Lib/test/test_threadsignals.py
index 9f076ef..2f014e1 100644
--- a/Lib/test/test_threadsignals.py
+++ b/Lib/test/test_threadsignals.py
@@ -8,7 +8,7 @@
 from test.test_support import run_unittest, TestSkipped
 
 if sys.platform[:3] in ('win', 'os2'):
-    raise TestSkipped, "Can't test signal on %s" % sys.platform
+    raise TestSkipped("Can't test signal on %s" % sys.platform)
 
 process_pid = os.getpid()
 signalled_all=thread.allocate_lock()