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-rw-r--r--test/ruby/envutil.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/ruby/envutil.rb b/test/ruby/envutil.rb
index 8b57c28e08..73fde74881 100644
--- a/test/ruby/envutil.rb
+++ b/test/ruby/envutil.rb
@@ -1,3 +1,4 @@
+# -*- coding: us-ascii -*-
require "open3"
require "timeout"