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-rw-r--r--activesupport/lib/active_support/dependencies/interlock.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/dependencies/interlock.rb b/activesupport/lib/active_support/dependencies/interlock.rb
index b88cf08dd2..0d80484c00 100644
--- a/activesupport/lib/active_support/dependencies/interlock.rb
+++ b/activesupport/lib/active_support/dependencies/interlock.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../concurrency/share_lock"
module ActiveSupport #:nodoc: