BRLCAD if-else formatting

/* synthetic division */
    if (bu_strcmp(argv[1],"sd") == 0) {
        return test_synthetic(&poly_eqn1, &poly_eqn2, &poly_exact_ans, &poly_ex_ans);
        /* basic operations(add/sub) */
    } else
        if (bu_strcmp(argv[1],"bo") == 0) {
        return test_add_sub(&poly_eqn1, &poly_eqn2, &poly_exact_ans, &poly_ex_ans);
            /* multiplication */
        } else
        if (bu_strcmp(argv[1],"mu") == 0) {
                return test_mult(&poly_eqn1, &poly_eqn2, &poly_exact_ans);
            /* scale */
            } else
        if (bu_strcmp(argv[1],"sc") == 0) {
                    return test_scale(&poly_eqn1, &poly_exact_ans);
            } else
                /* roots */
                if (bu_strcmp(argv[1],"rt") == 0) {
                counter = test_roots(&poly_eqn1, readroots);
                bu_free(readroots,"main Roots freed");
                return (int)counter;
                }