New function X509_get0_pubkey

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
diff --git a/apps/s_client.c b/apps/s_client.c
index f93ae35..5aa1adc 100644
--- a/apps/s_client.c
+++ b/apps/s_client.c
@@ -2206,10 +2206,9 @@
                SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
     if (peer != NULL) {
         EVP_PKEY *pktmp;
-        pktmp = X509_get_pubkey(peer);
+        pktmp = X509_get0_pubkey(peer);
         BIO_printf(bio, "Server public key is %d bit\n",
                    EVP_PKEY_bits(pktmp));
-        EVP_PKEY_free(pktmp);
     }
     BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
                SSL_get_secure_renegotiation_support(s) ? "" : " NOT");