On Wed, 20 Mar 2019 at 12:50, Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx> wrote: > + OPT_CALLBACK_F(0, "no-prefix", options, NULL, > + N_("no not show any source or destination prefix"), > + PARSE_OPT_NONEG | PARSE_OPT_NOARG, diff_opt_no_prefix), s/no not/do not/