query_str = query_string_from_args (notmuch, argc - opt_index, argv + opt_index);
if (query_str == NULL) {
fprintf (stderr, "Out of memory.\n");
query_str = query_string_from_args (notmuch, argc - opt_index, argv + opt_index);
if (query_str == NULL) {
fprintf (stderr, "Out of memory.\n");