Log Message:
Update to 2.000005

Upstream changes:
2.000005 - 2018-04-20
  - update internal list of warnings for categories added in 5.28.0 (no
    behaviour change)

2.000004 - 2018-04-19
  - update bundled ExtUtils::HasCompiler to 0.021
  - update internal list of warnings for categories added in 5.26.0 (no
    behavior change)