schwern/test-more — pull request #360 by schwern (2013-04-14 13:33:23+00:00)
Title: Fix TB2::History for Windows.

PID on Windows can be negative.
See http://www.cpantesters.org/cpan/report/58ae62c9-6bf6-1014-b747-1a2909253afe

Defined a new TB2::NonZero_Int type for the TB2::History PID storage.