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-rw-r--r--lib/rubygems/source/lock.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rubygems/source/lock.rb b/lib/rubygems/source/lock.rb
index 2ba7702bda..98fef5a4d1 100644
--- a/lib/rubygems/source/lock.rb
+++ b/lib/rubygems/source/lock.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
##
# A Lock source wraps an installed gem's source and sorts before other sources
# during dependency resolution. This allows RubyGems to prefer gems from