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-rw-r--r--lib/rdoc/parser.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rdoc/parser.rb b/lib/rdoc/parser.rb
index 4da7f00d3c..9c207edcff 100644
--- a/lib/rdoc/parser.rb
+++ b/lib/rdoc/parser.rb
@@ -1,4 +1,5 @@
# -*- coding: us-ascii -*-
+# frozen_string_literal: false
##
# A parser is simple a class that subclasses RDoc::Parser and implements #scan