lib/permalink/normalizations/leading_trailing_dashes.rb in permalink-2.0.0 vs lib/permalink/normalizations/leading_trailing_dashes.rb in permalink-2.1.0

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 module Permalink
   module Normalizations
     module LeadingTrailingDashes
       def self.call(input, _options = nil)
         input.gsub(/^-?(.*?)-?$/, '\1')