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-rw-r--r--lib/gitlab/email/attachment_uploader.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/gitlab/email/attachment_uploader.rb b/lib/gitlab/email/attachment_uploader.rb
index 83440ae227d..a826519b2dd 100644
--- a/lib/gitlab/email/attachment_uploader.rb
+++ b/lib/gitlab/email/attachment_uploader.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
module Gitlab
module Email
class AttachmentUploader