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-rw-r--r--railties/test/generators/test_runner_in_engine_test.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/railties/test/generators/test_runner_in_engine_test.rb b/railties/test/generators/test_runner_in_engine_test.rb
index 680dc2608e..0a330ea4e9 100644
--- a/railties/test/generators/test_runner_in_engine_test.rb
+++ b/railties/test/generators/test_runner_in_engine_test.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "generators/plugin_test_helper"
class TestRunnerInEngineTest < ActiveSupport::TestCase