> In jq_test.c:
>
> >    jv_test();
> > -  run_jq_tests(stdin);
> > +  if (argc > 2) {
> > +    testdata = fopen(argv[2], "re");
>
> "e"?

Makes sure O_CLOEXEC is set.  Actuall, I should make sure that's so in
jv_load_file() as well.

Don't merge yet; a few more changes coming.