Restore the empty lines

Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 5f89cad..9892660 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -898,6 +898,7 @@
     size_t identity_len;
     size_t l_binders_len = 0;
     size_t output_len;
+
     *out_len = 0;
     *binders_len = 0;