Merge pull request #8841 from BensonLiou/use_init_api-228

use mbedtls_ssl_session_init() to init session variable
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 161ff3a..d01202f 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -731,7 +731,7 @@
     mbedtls_net_init(&server_fd);
     mbedtls_ssl_init(&ssl);
     mbedtls_ssl_config_init(&conf);
-    memset(&saved_session, 0, sizeof(mbedtls_ssl_session));
+    mbedtls_ssl_session_init(&saved_session);
     rng_init(&rng);
 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
     mbedtls_x509_crt_init(&cacert);