skip empty buffers

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-1.4.11-ssl-fixes@1272 152afb58-edef-0310-8abb-c4023f1b3aa9

src/network_openssl.c

@@ -67,7 +67,7 @@ int network_write_chunkqueue_openssl(server *srv, connection *con, SSL *ssl, chu
 			size_t toSend;
 			ssize_t r;
 			
-			if (c->mem->used == 0) {
+			if (c->mem->used == 0 || c->mem->used == 1) {
 				chunk_finished = 1;
 				break;
 			}