revert name reset to original position

Author: jadonduff

Lib/test/test_threading.py

@@ -2281,6 +2281,9 @@ def test__all__(self):
     @unittest.skipUnless(hasattr(_thread, 'set_name'), "missing _thread.set_name")
     @unittest.skipUnless(hasattr(_thread, '_get_name'), "missing _thread._get_name")
     def test_set_name(self):
+        # Ensure main thread name is restored after test
+        self.addCleanup(_thread.set_name, _thread._get_name())
+
         # set_name() limit in bytes
         truncate = getattr(_thread, "_NAME_MAXLEN", None)
         limit = truncate or 100
@@ -2356,9 +2359,6 @@ def work():
                 if '\0' in expected:
                     expected = expected.split('\0', 1)[0]
 
-            # Ensure main thread name is restored after test
-            self.addCleanup(_thread.set_name, _thread._get_name())
-
             with self.subTest(name=name, expected=expected, thread="main"):
                 _thread.set_name(name)
                 self.assertEqual(_thread._get_name(), expected)