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-rw-r--r--test/lib/envutil.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/lib/envutil.rb b/test/lib/envutil.rb
index 2f2ec6d..a0b907c 100644
--- a/test/lib/envutil.rb
+++ b/test/lib/envutil.rb
@@ -1,4 +1,5 @@
# -*- coding: us-ascii -*-
+# frozen_string_literal: false
require "open3"
require "timeout"
require_relative "find_executable"