string output optimized

src/dealer_random_test.cpp

@@ -99,7 +99,8 @@ main(int argc, char *argv[])
 
             ostringstream oss("");
             for (int temp = 0; temp < NumCards; temp++)
-                cout << cardsArray[temp] << ",";
+                if(temp > 0) cout << ","
+                cout << cardsArray[temp];
             cout << endl;
         }