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-rw-r--r--lib/unicorn/preread_input.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/unicorn/preread_input.rb b/lib/unicorn/preread_input.rb
index 12eb3e8..c62cc09 100644
--- a/lib/unicorn/preread_input.rb
+++ b/lib/unicorn/preread_input.rb
@@ -1,4 +1,5 @@
 # -*- encoding: binary -*-
+# frozen_string_literal: false
 
 module Unicorn
 # This middleware is used to ensure input is buffered to memory