join_style.rb in prawn-2.3.0

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 # join_style.rb : Implements stroke join styling
 #
 # Contributed by Daniel Nelson. October, 2009
 #
 # This is free software. Please see the LICENSE and COPYING files for details.