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-rw-r--r--test/runner.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/runner.rb b/test/runner.rb
index 13506e592e..1fe32fcfc8 100644
--- a/test/runner.rb
+++ b/test/runner.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'rbconfig'
src_testdir = File.dirname(File.realpath(__FILE__))