Stop trying to guess the error content.

There is a least 2 different messages in 3 different functions depending OpenSSL release.

Author: Jean-Daniel Dupas

tests/test_ssl.py

@@ -490,7 +490,8 @@ def test_set_sigalgs_list_invalid_name(self, context):
         def test_set_sigalgs_list_not_supported(self):
             """
             If no signature algorithms supported by the server are set, the handshake
-            fails with a `"no suitable signature algorithm"` reason string.
+            fails with a `"no suitable signature algorithm"` reason string,
+            or 'no shared cipher' on older OpenSSL releases.
             """
 
             def make_client(socket):
@@ -500,17 +501,8 @@ def make_client(socket):
                 c.set_connect_state()
                 return c
 
-            with pytest.raises(Error) as excinfo:
+            with pytest.raises(Error):
                 loopback(client_factory=make_client)
-            assert excinfo.value.args == (
-                    [
-                        (
-                            'SSL routines',
-                            'tls_choose_sigalg',
-                            'no suitable signature algorithm',
-                        ),
-                    ],
-                )
 
     def test_get_sigalgs(self):
         """