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-rw-r--r--actionmailer/test/mailers/proc_mailer.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/actionmailer/test/mailers/proc_mailer.rb b/actionmailer/test/mailers/proc_mailer.rb
index 2487db9eb9..b7cf53eb4a 100644
--- a/actionmailer/test/mailers/proc_mailer.rb
+++ b/actionmailer/test/mailers/proc_mailer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
class ProcMailer < ActionMailer::Base
default to: "system@test.lindsaar.net",
"X-Proc-Method" => Proc.new { Time.now.to_i.to_s },