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-rw-r--r--lib/backup/files.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/backup/files.rb b/lib/backup/files.rb
index e287aa1e392..0032ae8f84b 100644
--- a/lib/backup/files.rb
+++ b/lib/backup/files.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
require 'open3'
require_relative 'helper'