charsets.rb in http-accept-2.1.0

- old
+ new

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+#
 # Copyright (C) 2016, Matthew Kerwin <matthew@kerwin.net.au>
 # 
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
 # in the Software without restriction, including without limitation the rights
@@ -63,12 +65,10 @@
 			HTTP_ACCEPT_CHARSET = 'HTTP_ACCEPT_CHARSET'.freeze
 			WILDCARD_CHARSET = Charset.new('*', nil).freeze
 			
 			# Parse the list of browser preferred charsets and return ordered by priority.
 			def self.browser_preferred_charsets(env)
-				if accept_charsets = env[HTTP_ACCEPT_CHARSET]
-					accept_charsets.strip!
-					
+				if accept_charsets = env[HTTP_ACCEPT_CHARSET]&.strip
 					if accept_charsets.empty?
 						# https://tools.ietf.org/html/rfc7231#section-5.3.3 :
 						#
 						#    Accept-Charset = 1#( ( charset / "*" ) [ weight ] )
 						#