remove test_support.TestSkipped and just use unittest.SkipTest
diff --git a/Lib/test/test_wait4.py b/Lib/test/test_wait4.py
index 9f7fc14..9a94d7b 100644
--- a/Lib/test/test_wait4.py
+++ b/Lib/test/test_wait4.py
@@ -4,17 +4,17 @@
 import os
 import time
 from test.fork_wait import ForkWait
-from test.test_support import TestSkipped, run_unittest, reap_children
+from test.test_support import SkipTest, run_unittest, reap_children
 
 try:
     os.fork
 except AttributeError:
-    raise TestSkipped, "os.fork not defined -- skipping test_wait4"
+    raise SkipTest, "os.fork not defined -- skipping test_wait4"
 
 try:
     os.wait4
 except AttributeError:
-    raise TestSkipped, "os.wait4 not defined -- skipping test_wait4"
+    raise SkipTest, "os.wait4 not defined -- skipping test_wait4"
 
 class Wait4Test(ForkWait):
     def wait_impl(self, cpid):