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-rw-r--r--lib/rdoc/ruby_token.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rdoc/ruby_token.rb b/lib/rdoc/ruby_token.rb
index f091e1a676..d923e24b18 100644
--- a/lib/rdoc/ruby_token.rb
+++ b/lib/rdoc/ruby_token.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
#--
# irb/ruby-token.rb - ruby tokens
# $Release Version: 0.9.5$