Bad requirement because sensitive case error

[Originally submitted on RubyForge (#21300) by: Cyril Mougel (shingara)]

After install the gem 0.2.0 of rawline, when I made a require 'rawline' I have this error :

    LoadError: no such file to load -- /usr/lib/ruby/gems/1.8/gems/rawline-0.2.0/lib/RawLine/terminal
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
    from /usr/lib/ruby/gems/1.8/gems/rawline-0.2.0/lib/rawline.rb:25
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in `gem_original_require'
    from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in `require'
    from (irb):1

I have this error because I use rawline in a linux distribution and the requirement in ruby is sensitive case. I made a patch that fix this issue