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-rw-r--r--lib/rubygems/test_utilities.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rubygems/test_utilities.rb b/lib/rubygems/test_utilities.rb
index 6789f6efc5..bb633eb3cc 100644
--- a/lib/rubygems/test_utilities.rb
+++ b/lib/rubygems/test_utilities.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'tempfile'
require 'rubygems'
require 'rubygems/remote_fetcher'