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-rw-r--r--spec/support/shared_examples/email_format_shared_examples.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/spec/support/shared_examples/email_format_shared_examples.rb b/spec/support/shared_examples/email_format_shared_examples.rb
index b924a208e71..22d6c2b38e3 100644
--- a/spec/support/shared_examples/email_format_shared_examples.rb
+++ b/spec/support/shared_examples/email_format_shared_examples.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
# Specifications for behavior common to all objects with an email attribute.
# Takes a list of email-format attributes and requires:
# - subject { "the object with a attribute= setter" }