Fix lint error

BlakeWilliams · BlakeWilliams · commit 4a3b9a867c2d · 2021-09-03T11:21:17.000-04:00
diff --git a/test/sandbox/app/mailers/test_mailer.rb b/test/sandbox/app/mailers/test_mailer.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
-require 'action_mailer'
+
+require "action_mailer"
 
 class TestMailer < ActionMailer::Base
   def test_email
