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-rw-r--r--activesupport/lib/active_support/multibyte/chars.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/multibyte/chars.rb b/activesupport/lib/active_support/multibyte/chars.rb
index e4c544d1fa..7bd1200fa6 100644
--- a/activesupport/lib/active_support/multibyte/chars.rb
+++ b/activesupport/lib/active_support/multibyte/chars.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../json"
require_relative "../core_ext/string/access"
require_relative "../core_ext/string/behavior"