Avoid RC4 use in another test

Author: nikic

ext/openssl/tests/openssl_open_basic.phpt

@@ -8,7 +8,7 @@ $data = "openssl_open() test";
 $pub_key = "file://" . __DIR__ . "/public.key";
 $priv_key = "file://" . __DIR__ . "/private_rsa_1024.key";
 $wrong = "wrong";
-$method = "RC4";
+$method = "AES-128-ECB";
 
 openssl_seal($data, $sealed, $ekeys, array($pub_key, $pub_key, $pub_key), $method);
 openssl_open($sealed, $output, $ekeys[0], $priv_key, $method);