nixosTests.acme: Fix typechecking, avoiding type reassignment

Changed files
+1 -1
nixos
tests
+1 -1
nixos/tests/acme.nix
···
webserver.wait_for_unit(f"acme-finished-{test_domain}.target")
wait_for_server()
check_connection(client, test_domain)
-
rc, _ = client.execute(
+
rc, _s = client.execute(
f"openssl s_client -CAfile /tmp/ca.crt -connect {test_alias}:443"
" </dev/null 2>/dev/null | openssl x509 -noout -text"
f" | grep DNS: | grep {test_alias}"