title: When run bundle get invalid byte sequence in US-ASCII
body: <p>I'm trying to deploy my Rails 3.0 app. I use rvm and ruby 1.9.2 (p 180 or p 290 - no difference) on the FreeBSD production server. When  I run bundle command, I get this exception on every :git gem (it seems that exception is raised only when I use edge versions with :git option in Gemfile):</p>
  
  <pre><code>...
  Installing has_scope (0.5.1) 
  Installing responders (0.6.4) 
  Using inherited_resources (1.2.2) from https://github.com/josevalim/inherited_resources.git (at master) /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:1915:in `gsub': invalid byte sequence in US-ASCII (ArgumentError)
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:1915:in `to_yaml'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/builder.rb:79:in `block (2 levels) in write_package'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_output.rb:73:in `block (3 levels) in add_gem_contents'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_writer.rb:83:in `new'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_output.rb:67:in `block (2 levels) in add_gem_contents'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_output.rb:65:in `wrap'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_output.rb:65:in `block in add_gem_contents'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_writer.rb:113:in `add_file'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_output.rb:63:in `add_gem_contents'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package/tar_output.rb:31:in `open'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/package.rb:44:in `open'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/builder.rb:78:in `block in write_package'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/open-uri.rb:35:in `open'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/open-uri.rb:35:in `open'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/builder.rb:77:in `write_package'
  from /home/tmr/data/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems/builder.rb:39:in `build'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/source.rb:456:in `block in generate_bin'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/source.rb:456:in `chdir'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/source.rb:456:in `generate_bin'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/source.rb:565:in `install'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/installer.rb:58:in `block (2 levels) in run'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/rubygems_integration.rb:93:in `with_build_args'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/installer.rb:57:in `block in run'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/installer.rb:49:in `run'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/installer.rb:8:in `install'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/cli.rb:220:in `install'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/vendor/thor/task.rb:22:in `run'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/vendor/thor.rb:263:in `dispatch'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/lib/bundler/vendor/thor/base.rb:386:in `start'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.18/bin/bundle:13:in `&lt;top (required)&gt;'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `load'
  from /home/tmr/data/.rvm/gems/ruby-1.9.2-p180/bin/bundle:19:in `&lt;main&gt;'
  </code></pre>
  
  <p>My gemfile:</p>
  
  <pre><code>source 'http://rubygems.org'
  
  group :production do
    gem "unicorn"
  end
  
  gem 'rails', '3.0.10'
  gem 'devise' #, :git=&gt;'https://github.com/plataformatec/devise.git'
  gem 'russian', :git =&gt; 'https://github.com/yaroslav/russian.git'
  gem 'i18n'
  gem 'cancan', :git=&gt;'https://github.com/ryanb/cancan.git'
  gem 'riddle', :git =&gt; 'git://github.com/freelancing-god/riddle.git'
  gem 'thinking-sphinx', :git =&gt; 'https://github.com/freelancing-god/thinking-sphinx.git', :branch=&gt;'rails3'
  gem 'inherited_resources', :git=&gt; 'https://github.com/josevalim/inherited_resources.git'
  gem 'has_scope'
  gem 'simple_form'
  gem 'dynamic_form'
  #gem "crummy", "&gt;= 1.0.1"
  gem "haml"
  gem 'jquery-rails', '&gt;= 0.2.6'
  gem 'kaminari'
  gem 'mysql2', '&lt; 0.3'
  gem "paperclip", "~&gt; 2.3"
  gem "whenever"
  
  group :development do
    gem 'haml-rails' #, :git=&gt;"https://github.com/indirect/haml-rails.git"
    gem "capistrano"
  end
  </code></pre>
  
  <p>1.9 is horrible with it's encoding problems... could you help once again?</p>