Make error messages native strings again.
diff --git a/OpenSSL/test/test_crypto.py b/OpenSSL/test/test_crypto.py
index 51da99b..4e42f70 100644
--- a/OpenSSL/test/test_crypto.py
+++ b/OpenSSL/test/test_crypto.py
@@ -1941,7 +1941,7 @@
         """
         passwd = 'whatever'
         e = self.assertRaises(Error, load_pkcs12, b'fruit loops', passwd)
-        self.assertEqual( e.args[0][0][0], b'asn1 encoding routines')
+        self.assertEqual( e.args[0][0][0], 'asn1 encoding routines')
         self.assertEqual( len(e.args[0][0]), 3)