Update to 0.23
    
    - New upstream release 0.23
      - Rely on B::Hooks::EndOfScope version 0.10 to fix issues with new
        Module::Runtime versions (≥ 0.012) on perl 5.10 due to incorrect hook
        firing due to %^H localisation
      - Fix failures on 5.13.6 due to incorrect version number threshold
        (CPAN RT#74683)
    - Don't need to remove empty directories from buildroot
    - Drop %defattr, redundant since rpm 4.4