Function notnull

t/helper/test-ref-store.c:55–60

static struct flag_definition empty_flags[] = { { NULL, 0 } };

static const char *notnull(const char *arg, const char *name)
{
	if (!arg)
		die("%s required", name);
	return arg;
}

static unsigned int arg_flags(const char *arg, const char *name,
			      struct flag_definition *defs)