fixed bug with small straight not awarding points in valid small straight scenarios

unsigned int n_in_a_row(struct die_st *dice, unsigned int num_dice, unsigned int n) {

    // testing only: large straight (note: this scores 0 despite being valid!) BUT this does register as a small straight.

    dice[0].value = 6;

    dice[1].value = 2;

    dice[2].value = 5;

    dice[3].value = 4;

    dice[4].value = 3;

//    dice[0].value = 6;

//    dice[1].value = 2;

//    dice[2].value = 5;

//    dice[3].value = 4;

//    dice[4].value = 3;

// testing only: small straight

//    dice[0].value = 2;