Fix accidental suppression in r84537
diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py
index cc194b5..cc18d57 100644
--- a/Lib/test/test_set.py
+++ b/Lib/test/test_set.py
@@ -1,4 +1,4 @@
-mport unittest
+import unittest
 from test import support
 import gc
 import weakref