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-rw-r--r--activesupport/lib/active_support/ordered_hash.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/ordered_hash.rb b/activesupport/lib/active_support/ordered_hash.rb
index 3aa0a14f04..b07b89447e 100644
--- a/activesupport/lib/active_support/ordered_hash.rb
+++ b/activesupport/lib/active_support/ordered_hash.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "yaml"
YAML.add_builtin_type("omap") do |type, val|