ext_len = ROUND_UP (l.label_len, sizeof l.label_len);
memcpy (l.label, v->label, l.label_len);
memset (&l.label[l.label_len], ' ', ext_len - l.label_len);
ext_len = ROUND_UP (l.label_len, sizeof l.label_len);
memcpy (l.label, v->label, l.label_len);
memset (&l.label[l.label_len], ' ', ext_len - l.label_len);