lib/progress/class_methods.rb in progress-3.5.0 vs lib/progress/class_methods.rb in progress-3.5.1

@@ -1,6 +1,7 @@
 # encoding: UTF-8
+# frozen_string_literal: true
 
 class Progress
   # Class methods of Progress
   module ClassMethods
     def self.extended(klass)
@@ -179,10 +180,10 @@
     end
 
     def message_for_output(options)
       message = build_message(options)
 
-      out = ''
+      out = ''.dup
       out << "\r" if stay_on_line?
       out << message
       out << "\e[K" if stay_on_line?
       out << "\n" if !stay_on_line? || options[:finish]