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-rw-r--r--lib/getoptlong.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/getoptlong.rb b/lib/getoptlong.rb
index cf635f0438..e81493ea50 100644
--- a/lib/getoptlong.rb
+++ b/lib/getoptlong.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
#
# GetoptLong for Ruby
#