Gemfile in rmagick-2.13.4 vs Gemfile in rmagick-2.14.0

@@ -1,7 +1,10 @@
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in rmagick.gemspec
 gemspec
 
+group :development, :test do
+  gem 'simplecov', :require => false
+end
 # Used by README.textile
 # gem "RedCloth"