Some 'unsigned int' changed to 'unsigned'

'unsigned int' is too long sometimes. (We already write 'long' instead
of 'long int'...)

ltablib.c

@@ -329,8 +329,7 @@ static IdxT choosePivot (IdxT lo, IdxT up, unsigned int rnd) {
 /*
 ** Quicksort algorithm (recursive function)
 */
-static void auxsort (lua_State *L, IdxT lo, IdxT up,
-                                   unsigned int rnd) {
+static void auxsort (lua_State *L, IdxT lo, IdxT up, unsigned rnd) {
   while (lo < up) {  /* loop for tail recursion */
     IdxT p;  /* Pivot index */
     IdxT n;  /* to be used later */