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-rw-r--r--lib/syntax_suggest/mini_stringio.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/syntax_suggest/mini_stringio.rb b/lib/syntax_suggest/mini_stringio.rb
index ee5192ba90..2903275ea2 100644
--- a/lib/syntax_suggest/mini_stringio.rb
+++ b/lib/syntax_suggest/mini_stringio.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
module SyntaxSuggest
# Mini String IO [Private]
#