update to the proposed changes of the function, and of the function return

update to the proposed changes of the function, and of the function return

programs/function_varargs.txt

@@ -1,2 +1,9 @@
 $ python function_varargs.py
-166
+a 10
+single_item 1
+single_item 2
+single_item 3
+Inge 1560
+John 2231
+Jack 1123
+None