fix rspec warnings

Rakefile

@@ -13,7 +13,7 @@ task :default => :spec
 task :release => :man
 
 desc "Run all specs"
-Rspec::Core::RakeTask.new(:spec) do |t|
+RSpec::Core::RakeTask.new(:spec) do |t|
   t.pattern = 'spec/**/*_spec.rb'
 end
 
@@ -22,7 +22,7 @@ task :rcov => "rcov:build" do
   %x{ open coverage/index.html }
 end
 
-Rspec::Core::RakeTask.new("rcov:build") do |t|
+RSpec::Core::RakeTask.new("rcov:build") do |t|
   t.pattern = 'spec/**/*_spec.rb'
   t.rcov = true
   t.rcov_opts = [ "--exclude", ".bundle", "--exclude", "spec" ]

spec/spec_helper.rb

@@ -52,7 +52,7 @@ def example_export_file(filename)
   data
 end
 
-Rspec.configure do |config|
+RSpec.configure do |config|
   config.color_enabled = true
   config.include FakeFS::SpecHelpers
   config.mock_with :rr