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-rw-r--r--tools/test_common.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/test_common.rb b/tools/test_common.rb
index 7f59caf644..9959f55ded 100644
--- a/tools/test_common.rb
+++ b/tools/test_common.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
if ENV["BUILDKITE"]
require "minitest/reporters"
require "fileutils"