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-rw-r--r--activesupport/lib/active_support/string_inquirer.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/string_inquirer.rb b/activesupport/lib/active_support/string_inquirer.rb
index 90eac89c9e..a3af36720e 100644
--- a/activesupport/lib/active_support/string_inquirer.rb
+++ b/activesupport/lib/active_support/string_inquirer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
module ActiveSupport
# Wrapping a string in this class gives you a prettier way to test
# for equality. The value returned by <tt>Rails.env</tt> is wrapped