install.rake in kredis-1.6.0

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 namespace :kredis do
   desc "Install kredis"
   task :install do
     system "#{RbConfig.ruby} ./bin/rails app:template LOCATION=#{File.expand_path("../../install/install.rb",  __dir__)}"
   end