Don't print uninitialised buffer in ssl_mail_client
diff --git a/programs/ssl/ssl_mail_client.c b/programs/ssl/ssl_mail_client.c
index 31e22fc..90845bd 100644
--- a/programs/ssl/ssl_mail_client.c
+++ b/programs/ssl/ssl_mail_client.c
@@ -375,6 +375,8 @@
     memset( &rsa, 0, sizeof( rsa_context ) );
     memset( &ssl, 0, sizeof( ssl_context ) );
 
+    memset( buf, 0, sizeof( buf ) );
+
     if( argc == 0 )
     {
     usage: