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-rw-r--r--test/rubygems/test_gem_commands_cert_command.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/rubygems/test_gem_commands_cert_command.rb b/test/rubygems/test_gem_commands_cert_command.rb
index 4c1dcc25c0..5179327211 100644
--- a/test/rubygems/test_gem_commands_cert_command.rb
+++ b/test/rubygems/test_gem_commands_cert_command.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
require 'rubygems/test_case'
require 'rubygems/commands/cert_command'
require 'rubygems/fix_openssl_warnings' if RUBY_VERSION < "1.9"