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-rw-r--r--ext/openssl/lib/openssl/pkey.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/openssl/lib/openssl/pkey.rb b/ext/openssl/lib/openssl/pkey.rb
index 007934f81e..3f65adadb5 100644
--- a/ext/openssl/lib/openssl/pkey.rb
+++ b/ext/openssl/lib/openssl/pkey.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
module OpenSSL
module PKey
if defined?(OpenSSL::PKey::DH)