Be more lenient in test_wallclock (issue #10278).

Lib/test/test_time.py

@@ -331,13 +331,13 @@ class TimeTestCase(unittest.TestCase):
             pass
         self.assertEqual(time.strftime('%Z', tt), tzname)
 
-
     def test_wallclock(self):
         t0 = time.wallclock()
         time.sleep(0.1)
         t1 = time.wallclock()
         t = t1 - t0
-        self.assertAlmostEqual(t, 0.1, places=2)
+        self.assertAlmostEqual(t, 0.1, delta=0.2)
+
 
 class TestLocale(unittest.TestCase):
     def setUp(self):