Rakefile in phobos_db_checkpoint-3.3.0 vs Rakefile in phobos_db_checkpoint-3.4.0

@@ -1,6 +1,8 @@
+# frozen_string_literal: true
+
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
 
 RSpec::Core::RakeTask.new(:spec)
 
-task :default => :spec
+task default: :spec