lib/find.rb: Specify frozen_string_literal: true.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57620 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/find.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 #
 # find.rb: the Find module for processing all files under a given directory.
 #

test/test_find.rb

@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 require 'test/unit'
 require 'find'
 require 'tmpdir'