errors.rb in prawn-2.3.0

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 # errors.rb : Implements custom error classes for Prawn
 #
 # Copyright April 2008, Gregory Brown.  All Rights Reserved.
 #
 # This is free software. Please see the LICENSE and COPYING files for details.