Rakefile in puppetlabs_spec_helper-2.15.0 vs Rakefile in puppetlabs_spec_helper-2.16.0

@@ -1,5 +1,5 @@
-# encoding: utf-8
+# frozen_string_literal: true
 
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
 
 def gem_present(name)