- ds_printf (&vls_length_map, "%s=%05d", v->short_name, v->width);
- ds_putc (&vls_length_map, '\0');
- ds_putc (&vls_length_map, '\t');
+ ds_put_format (&vls_length_map, "%s=%05d", v->short_name, v->width);
+ ds_put_char (&vls_length_map, '\0');
+ ds_put_char (&vls_length_map, '\t');