Update the f-string test broken in issue #28385.
diff --git a/Lib/test/test_fstring.py b/Lib/test/test_fstring.py
index 92995fd..0af93e0 100644
--- a/Lib/test/test_fstring.py
+++ b/Lib/test/test_fstring.py
@@ -720,7 +720,7 @@
 
     def test_errors(self):
         # see issue 26287
-        self.assertAllRaise(TypeError, 'non-empty',
+        self.assertAllRaise(TypeError, 'unsupported',
                             [r"f'{(lambda: 0):x}'",
                              r"f'{(0,):x}'",
                              ])