Another update from ingydotnet^djgoku

Task/Sorting-algorithms-Quicksort/C/sorting-algorithms-quicksort.c

@@ -20,7 +20,7 @@ void quick_sort (int *a, int n) {
     quick_sort(a + i, n - i);
 }
 
-int main () {
+int main (void) {
     int a[] = {4, 65, 2, -31, 0, 99, 2, 83, 782, 1};
     int n = sizeof a / sizeof a[0];
     int i;