docs.rake in apress-api-1.24.2

- old
+ new

@@ -1,4 +1,5 @@
+# frozen_string_literal: true
 namespace :docs do
   desc 'Generate api documentation'
   task generate: :environment do
     filename = 'swagger_v1.json'
     path = Rails.application.config.api[:v1_doc_path]