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-rw-r--r--lib/rdoc/markup/to_html_crossref.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rdoc/markup/to_html_crossref.rb b/lib/rdoc/markup/to_html_crossref.rb
index d27e0ab627..3f03c65898 100644
--- a/lib/rdoc/markup/to_html_crossref.rb
+++ b/lib/rdoc/markup/to_html_crossref.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
##
# Subclass of the RDoc::Markup::ToHtml class that supports looking up method
# names, classes, etc to create links. RDoc::CrossReference is used to