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-rw-r--r--test/csv/base.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/csv/base.rb b/test/csv/base.rb
index 621569e013..a282c7afed 100644
--- a/test/csv/base.rb
+++ b/test/csv/base.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require "test/unit"
require "csv"