I get a different (expected?) output on perl v5.14.2:

Text::Wrap info: 
Subverion:   
Version:  2009.0305 

123456789|123456789|123456789|123456789|123456789|123456789|

the quick brown fox jumped
over the lazy dog
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123456789|123456789|123456789|123456789|123456789|123456789|

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UPDATE: perl5180delta mentions an update to Text::Wrap.