static enum parse_opt_result option_read_message(struct parse_opt_ctx_t *ctx,
const struct option *opt,
+ const char *arg_not_used,
int unset)
{
struct strbuf *buf = opt->value;
const char *arg;
+ BUG_ON_OPT_ARG(arg_not_used);
if (unset)
BUG("-F cannot be negated");