fix rubocop error for Rakefile

Rakefile

@@ -30,18 +30,19 @@ task :changelog do
   # Automatically generate a changelog for this project. Only loaded if
   # the necessary gem is installed. By default its picking up the version from
   # inspec.yml. You can override that behavior with `rake changelog to=1.2.0`
-    require 'yaml'
-    metadata = YAML.load_file('inspec.yml')
-    v = ENV['to'] || metadata['version']
-    puts " * Generating changelog for version #{v}"
-    require 'github_changelog_generator/task'
-    GitHubChangelogGenerator::RakeTask.new :changelog do |config|
-      config.future_release = v
-      config.user = 'dev-sec'
-      config.project = 'openstack-baseline'
-    end
-    Rake::Task[:changelog].execute
-  rescue LoadError
-    puts '>>>>> GitHub Changelog Generator not loaded, omitting tasks'
+
+  require 'yaml'
+  metadata = YAML.load_file('inspec.yml')
+  v = ENV['to'] || metadata['version']
+  puts " * Generating changelog for version #{v}"
+  require 'github_changelog_generator/task'
+  GitHubChangelogGenerator::RakeTask.new :changelog do |config|
+    config.future_release = v
+    config.user = 'dev-sec'
+    config.project = 'openstack-baseline'
   end
+  Rake::Task[:changelog].execute
+rescue LoadError
+  puts '>>>>> GitHub Changelog Generator not loaded, omitting tasks'
+
 end