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-rw-r--r--lib/rubygems/security/signer.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rubygems/security/signer.rb b/lib/rubygems/security/signer.rb
index fbee240f29..a6d0161edc 100644
--- a/lib/rubygems/security/signer.rb
+++ b/lib/rubygems/security/signer.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
##
# Basic OpenSSL-based package signing class.