Fix Rubocop failures in API logger

lib/api/api.rb

@@ -7,9 +7,11 @@ module API
     use GrapeLogging::Middleware::RequestLogger,
         logger: ::Gitlab::ApiLogger.new(LOG_FILENAME),
         formatter: GrapeLogging::Formatters::Json.new,
-        include: [ GrapeLogging::Loggers::Response.new,
-                   GrapeLogging::Loggers::FilterParameters.new,
-                   GrapeLogging::Loggers::ClientEnv.new ]
+        include: [
+          GrapeLogging::Loggers::Response.new,
+          GrapeLogging::Loggers::FilterParameters.new,
+          GrapeLogging::Loggers::ClientEnv.new
+        ]
 
     allow_access_with_scope :api
     prefix :api

lib/gitlab/api_logger.rb

 module Gitlab
   class ApiLogger < ::Logger
-
     def format_message(severity, timestamp, progname, message)
       super + "\n"
     end