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-rw-r--r--test/drb/ut_drb_drbunix.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/drb/ut_drb_drbunix.rb b/test/drb/ut_drb_drbunix.rb
index c997d2469d..ecf0920451 100644
--- a/test/drb/ut_drb_drbunix.rb
+++ b/test/drb/ut_drb_drbunix.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require "#{File.dirname(File.expand_path(__FILE__))}/ut_drb"
if __FILE__ == $0