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  1. or download this
    use 5.010;  # needs:  \gn  (*SKIP)  (*FAIL)
    
    ...
    done_testing();
    
    exit;
    
  2. or download this
    c:\@Work\Perl\monks\Anonymous Monk\1213014>perl only_double_letters_2.
    +pl
    #
    ...
    1..38
    ok 39 - no warnings
    1..39