Removed potential integer overflow.

If the number passed into max is Integer.MAX_VALUE, like it is with
ChoiceOfDamnation, the random number will overflow. So let's not do
that.

Mage.Server.Plugins/Mage.Player.AI/src/main/java/mage/player/ai/ComputerPlayer.java

@@ -1543,7 +1543,7 @@ public class ComputerPlayer extends PlayerImpl implements Player {
         }
         //TODO: improve this
         if (min < max && min == 0) {
-            return RandomUtil.nextInt(max + 1);
+            return RandomUtil.nextInt(max);
         }
         return min;
     }