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-rw-r--r--test/ruby/test_array.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/ruby/test_array.rb b/test/ruby/test_array.rb
index d2af339a11..b1fc473f86 100644
--- a/test/ruby/test_array.rb
+++ b/test/ruby/test_array.rb
@@ -1,4 +1,5 @@
# coding: US-ASCII
+# frozen_string_literal: false
require 'test/unit'
class TestArray < Test::Unit::TestCase