Update to 2.005
    
    - Update to 2.005, needed for perl-Email-MIME (#725225)
      - Huge improvement to speed of bodyless message parsing
      - More documentation of header class
      - New Header crlf defaults to real CRLF
      - Change initialization order to unbreak Email::MIME
      - Do not return ->body from ->body_set to simplify subclass behavior
      - Improve tests
      - Publicize default_header_class method
      - Remove the long-deprecated Headers.pm
      - Add repository metadata
    - BR: perl(ExtUtils::MakeMaker) for module build
    - BR: perl(Carp) for module
    - BR: perl(Test::MinimumVersion) and perl(Test::More) ≥ 0.47 for test suite
    - Fix license tag
    - Don't use macros for commands
    - Don't need to remove empty directories from buildroot
    - Use DESTDIR rather than PERL_INSTALL_ROOT
    - Use %{_fixperms} macro rather than our own chmod incantation
    - Make %files list more explicit
    - Drop %defattr, redundant since rpm 4.4