This worked for my case with $Data::Dumper::Perltidy::ARGV = "-l=$large_integer" but it was very slow compared to Data::Dump. 
run time seconds
----------------
real  user  method
0.696 0.390 Data::Dump
44.42 33.45 Data::Dumper::Perltidy

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In reply to Re^2: Data::Dumper print arrays of scalars on one line by Danny
in thread Data::Dumper print arrays of scalars on one line by Danny

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