lib/grape/exceptions/base.rb in grape-0.11.0 vs lib/grape/exceptions/base.rb in grape-0.12.0

@@ -27,10 +27,10 @@
         if short_message.is_a? Hash
           @problem = problem(key, attributes)
           @summary = summary(key, attributes)
           @resolution = resolution(key, attributes)
           [['Problem', @problem], ['Summary', @summary], ['Resolution', @resolution]].reduce('') do |message, detail_array|
-            message <<  "\n#{detail_array[0]}:\n  #{detail_array[1]}" unless detail_array[1].blank?
+            message << "\n#{detail_array[0]}:\n  #{detail_array[1]}" unless detail_array[1].blank?
             message
           end
         else
           short_message
         end