bin/volay in volay-1.1.0 vs bin/volay in volay-1.2.0

@@ -1,6 +1,8 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
+
 require File.expand_path('../../lib/volay', __FILE__)
 
 # Module volay
 module Volay
   # Main class to display app or control volume
@@ -8,10 +10,10 @@
     def initialize
       cli = Volay::CLI.new
       cli.parse_options
       Volay::Config.set(:log_level, cli.config[:log_level])
       Volay::Config.init_config
-      if [:up, :down, :mute].any? { |k| cli.config.key?(k) }
+      if %i[up down mute].any? { |k| cli.config.key?(k) }
         sound(cli.config)
       else
         app
       end
     end