(MODULES-3983) Update parallel_tests for ruby 2.0.0

Author: pmcmaw

Gemfile

@@ -24,7 +24,8 @@ group :development, :unit_tests do
   gem 'rspec-puppet', '>= 2.3.2'
   gem 'rspec-puppet-facts'
   gem 'simplecov'
-  gem 'parallel_tests'
+  gem 'parallel_tests', '< 2.10.0' if RUBY_VERSION < '2.0.0'
+  gem 'parallel_tests' if RUBY_VERSION >= '2.0.0'
   gem 'rubocop', '0.41.2' if RUBY_VERSION < '2.0.0'
   gem 'rubocop' if RUBY_VERSION >= '2.0.0'
   gem 'rubocop-rspec', '~> 1.6' if RUBY_VERSION >= '2.3.0'