inputs_helper.rb in formtastic-5.0.0

- old
+ new

@@ -1,5 +1,6 @@
+# frozen_string_literal: true
 module Formtastic
   module Helpers
 
     # {#inputs} is used to wrap a series of form items in a `<fieldset>` and `<ol>`, with each item
     # in the list containing the markup representing a single {#input}.
@@ -375,10 +376,10 @@
       def inputs_for_nested_attributes(*args, &block) # @private
         options = args.extract_options!
         args << options.merge!(:parent => { :builder => self, :for => options[:for] })
 
         fields_for_block = if block_given?
-          raise ArgumentError, 'You gave :for option with a block to inputs method, ' <<
+          raise ArgumentError, 'You gave :for option with a block to inputs method, ' +
                                'but the block does not accept any argument.' if block.arity <= 0
           lambda do |f|
             contents = f.inputs(*args) do
               if block.arity == 1  # for backwards compatibility with REE & Ruby 1.8.x
                 yield(f)