Update to 0.0504
    
    - New upstream release 0.0504:
      - Fixed error message for assert_deep_equals
      - Uses Symbol::Util as exported; all exported symbols can be removed with
        "no Test::Assert" statement
      - Minor refactoring of "assert_deep_equals" method and its private methods
      - Require Symbol::Util ≥ 0.0202 and constant::boolean ≥ 0.02
      - Build requires Class::Inspector
      - The ":assert" tag also imports the "ASSERT" constant
    - Spec clean-up:
      - Include LICENSE file
      - Include eg/ directory as %%doc
      - Add %%{?perl_default_filter} to avoid doc-file dependencies from examples
      - BR: Perl core modules that might be dual-lived
      - Don't need to remove empty directories from buildroot
      - Make %%files list more explicit
      - Drop %%defattr, redundant since rpm 4.4
      - Drop buildroot definition and cleaning, redundant since rpm 4.6
      - Don't use macros for commands
      - Drop unnecessary dependency filtering
      - Use tabs