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-rw-r--r--lib/rdoc/cross_reference.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rdoc/cross_reference.rb b/lib/rdoc/cross_reference.rb
index 5b08d5202d..0e40d23159 100644
--- a/lib/rdoc/cross_reference.rb
+++ b/lib/rdoc/cross_reference.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
##
# RDoc::CrossReference is a reusable way to create cross references for names.