bin/console in mtree-1.0.0 vs bin/console in mtree-1.0.1

@@ -1,5 +1,6 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require 'bundler/setup'
 require 'mtree'
 
 # You can add fixtures and/or initialization code here to make experimenting