Fail to require system

[tripledes]

Hi,

I'm installing system via rubygems under ruby1.9 (the supported version on Debian) and when requiring system from my script I get an error due to 'bundle/setup':

vagrant@vagrant-base-wheezy-amd64:~$ gem install --user-install system
Fetching: system-0.1.3.gem (100%)
Successfully installed version-1.0.0
Successfully installed system-0.1.3
2 gems installed
Installing ri documentation for version-1.0.0...
Installing ri documentation for system-0.1.3...
Installing RDoc documentation for version-1.0.0...
Installing RDoc documentation for system-0.1.3...
vagrant@vagrant-base-wheezy-amd64:~$ irb
irb(main):001:0> require 'system'
LoadError: cannot load such file -- bundler/setup
        from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
        from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
        from /home/vagrant/.gem/ruby/1.9.1/gems/system-0.1.3/lib/system.rb:4:in `<top     (required)>'
        from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:60:in `require'
        from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:60:in `rescue in require'
        from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
        from (irb):1
        from /usr/bin/irb:12:in `<main>'

I was wondering, is the require 'bundle/setup' really needed or is it just for development? Commenting it out, system works as expected.

Thanks!