Fixed up ex4.c

lcthw-remnants-2/ex4.c

@@ -1,13 +1,11 @@
 #include <stdio.h>
 
-/* Warning: This program is wrong on purpose. */
-
 int main()
 {
   int age = 10;
-  int height;
+  int height = 72;
 
-  printf("I am %d years old.\n");
+  printf("I am %d years old.\n", age);
   printf("I am %d inches tall.\n", height);
 
   return 0;