Revert "Reword output message"

This reverts commit 63317f2aa0.

src/main/java/InteractiveInterface.java

@@ -258,7 +258,7 @@ public class InteractiveInterface {
             cellFile = sc.next();
             System.out.print("\nPlease enter name of an existing sample plate file: ");
             plateFile = sc.next();
-            System.out.println("\nThe graph and occupancy data will be written to a file.");
+            System.out.println("\nThe graph and occupancy data will be written to a serialized binary file.");
             System.out.print("Please enter a name for the output file: ");
             filename = sc.next();
         } catch (InputMismatchException ex) {