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-rw-r--r--ext/tk/sample/tkextlib/tkHTML/ss.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/tk/sample/tkextlib/tkHTML/ss.rb b/ext/tk/sample/tkextlib/tkHTML/ss.rb
index 45d4d87d69..e6ef63bc31 100644
--- a/ext/tk/sample/tkextlib/tkHTML/ss.rb
+++ b/ext/tk/sample/tkextlib/tkHTML/ss.rb
@@ -1,4 +1,5 @@
#!/usr/bin/env ruby
+# frozen_string_literal: false
#
# This script implements the "ss" application. "ss" implements
# a presentation slide-show based on HTML slides.