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```
#!/usr/bin/perl

...
}

__END__
```

C:\Steve\Dev\PerlMonks\P-2015-03-19@1121-Durable-Subroutine-Data>persi
+stent1.pl
----------------------------------------------------------------------
+---------
...
     MAIN:      $updatedValue = [<Initial value>]
     MAIN:   $additionalValue = [<<Initial value>>]
----------------------------------------------------------------------
+---------