I started searching and wandered upon a cool link. Tom Christiansen posted the source for Underscore.pm as well as a test script (both of which appear in the Camel).

Update! bikeNomad posted a similar one here and says it's from the Perl Cookbook.

In reply to Re: Re: Is your module clobbering predefined variables? by Mr. Muskrat
in thread Is your module clobbering predefined variables? by crenz

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