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-rwxr-xr-xext/ripper/tools/generate-param-macros.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/ripper/tools/generate-param-macros.rb b/ext/ripper/tools/generate-param-macros.rb
index b19f6e8d5c..c1f0c5bc31 100755
--- a/ext/ripper/tools/generate-param-macros.rb
+++ b/ext/ripper/tools/generate-param-macros.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
off = true
ARGF.each do |line|
case line