pdfkit.rb in pdfkit-0.8.6

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 require 'pdfkit/source'
 require 'pdfkit/pdfkit'
 require 'pdfkit/middleware'
 require 'pdfkit/html_preprocessor'
 require 'pdfkit/os'