stripe.gemspec in stripe-3.14.0 vs stripe.gemspec in stripe-3.15.0

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), "lib"))
 
 require "stripe/version"
 
 Gem::Specification.new do |s|