Make time.sleep calls go to 0 for common testing.
diff --git a/Lib/test/test_dummy_threading.py b/Lib/test/test_dummy_threading.py
index e377230..3724f1e 100644
--- a/Lib/test/test_dummy_threading.py
+++ b/Lib/test/test_dummy_threading.py
@@ -12,7 +12,10 @@
 
     def run(self):
         global running
-        delay = random.random() * 2
+        # Uncomment if testing another module, such as the real 'threading'
+        # module.
+        #delay = random.random() * 2
+        delay = 0
         if verbose:
             print 'task', self.getName(), 'will run for', delay, 'sec'
         sema.acquire()