nanoc.gemspec in nanoc-4.7.9 vs nanoc.gemspec in nanoc-4.7.10

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 require_relative 'lib/nanoc/version'
 
 Gem::Specification.new do |s|
   s.name        = 'nanoc'
   s.version     = Nanoc::VERSION