title: Guard with RSpec on Rails 4 giving a lot of warnings
body: <p>I'm wondering how I can turn off all these warnings when running a simple test:</p>
  
  <pre><code>[1] guard(main)&gt; 
  16:59:46 - INFO - Run all
  16:59:46 - INFO - Running all specs
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/rspec-rails-3.0.1/lib/rspec/rails/adapters.rb:124: warning: instance variable @example not initialized
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/rspec-rails-3.0.1/lib/rspec/rails/adapters.rb:124: warning: instance variable @example not initialized
  .*
  
  Pending:
    HomeHelper add some examples to (or delete) /Users/esjd/ruby/rails/ts3/spec/helpers/home_helper_spec.rb
      # Not yet implemented
      # ./spec/helpers/home_helper_spec.rb:14
  
  Finished in 0.03601 seconds (files took 7 minutes 48 seconds to load)
  2 examples, 0 failures, 1 pending
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:76: warning: global variable `$CELLULOID_DEBUG' not initialized
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:76: warning: global variable `$CELLULOID_DEBUG' not initialized
  
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/guard-2.6.1/lib/guard/interactor.rb:64: warning: instance variable @enabled not initialized
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/guard-2.6.1/lib/guard/interactor.rb:64: warning: instance variable @enabled not initialized
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/guard-2.6.1/lib/guard/interactor.rb:64: warning: instance variable @enabled not initialized
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/guard-2.6.1/lib/guard/interactor.rb:64: warning: instance variable @enabled not initialized
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:76: warning: global variable `$CELLULOID_DEBUG' not initialized
  /Users/esjd/.rvm/gems/ruby-2.1.2/gems/celluloid-0.15.2/lib/celluloid/tasks.rb:76: warning: global variable `$CELLULOID_DEBUG' not initialized
  </code></pre>
  
  <p>I'm running Rails 4.1.1, Ruby 2.1.2p95, and...</p>
  
  <pre><code>guard (2.6.1)
  rspec (3.0.0)
  guard-rspec (4.2.9)
  </code></pre>
  
  <p>I've tried running guard with:</p>
  
  <pre><code>guard :rspec, cmd:"ruby -W0 bin/rspec" do
  </code></pre>
  
  <p>instead of:</p>
  
  <pre><code>guard :rspec, cmd:"spring rspec" do
  </code></pre>
  
  <p>But it didn't do anything.</p>
  
  <p>These warnings are super annoying, and I'm pretty sure I'm not causing them. Help!</p>