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-rw-r--r--rubocop/migration_helpers.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/rubocop/migration_helpers.rb b/rubocop/migration_helpers.rb
index dffceb2b2c8..63b3766e126 100644
--- a/rubocop/migration_helpers.rb
+++ b/rubocop/migration_helpers.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
module RuboCop
# Module containing helper methods for writing migration cops.
module MigrationHelpers