examples/scoop in clamp-1.2.1 vs examples/scoop in clamp-1.3.0

@@ -1,15 +1,16 @@
 #! /usr/bin/env ruby
+# frozen_string_literal: true
 
 # An example of multi-valued options
 
 require "clamp"
 
 Clamp do
 
   option ["-f", "--flavour"], "FLAVOUR", "flavour",
-         :multivalued => true, :default => ["chocolate"],
-         :attribute_name => :flavours
+         multivalued: true, default: ["chocolate"],
+         attribute_name: :flavours
 
   def execute
     puts "one #{flavours.join(' and ')} ice-cream"
   end