Hammer CLI

Hammer nightlies have started printing an annoying warning on Ruby 1.8 installations:

# hammer
/usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/lib/hammer_cli/./apipie/../abstract.rb:67: warning: already initialized constant DEFAULT_LABEL_INDENT

rubygem-hammer_cli-0.1.3-1.201409240954gitf3c47c7.el6.noarch
rubygem-hammer_cli_foreman-0.1.3-1.201409191432gitc38f9c8.el6.noarch

I added some debug and found the following, the abstract.rb file is required twice through different code paths:

/usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/lib/hammer_cli/abstract.rb:67: here (RuntimeError)
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/lib/hammer_cli.rb:14
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/bin/hammer:89
    from /usr/bin/hammer:19:in `load'
    from /usr/bin/hammer:19

/usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/lib/hammer_cli/./apipie/../abstract.rb:67: here (RuntimeError)
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/lib/hammer_cli/./apipie/command.rb:1
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/lib/hammer_cli/apipie.rb:2
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/lib/hammer_cli.rb:17
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/lib/ruby/gems/1.8/gems/hammer_cli-0.1.3/bin/hammer:89
    from /usr/bin/hammer:19:in `load'
    from /usr/bin/hammer:19