cho45/Config-ENV — pull request #5 by tmitz (2014-09-02 07:11:08+00:00)
Title: Fix Perl-5.20.0 build test error

Cause build error using perl 5.20.0. bacause of failed 1 test script (05_load.t).
Fix `$!` value set local variable `my $errno`.

maybe from 5.20.0, `$!` handling changing...?