_json.html.erb in wallaby-5.1.5

- old
+ new

@@ -10,9 +10,10 @@
 <% form_value = value.is_a?(String) ? value : (JSON.pretty_generate(value) rescue nil) %>
 <div class="form-group <%= form.error_class field_name %>">
   <%= form.label field_name, metadata[:label] %>
   <%= form.text_area field_name, value: form_value, class: 'form-control', data: { init: 'codemirror', mode: 'javascript' } %>
   <%= form.error_messages field_name %>
+  <%= hint_of metadata %>
 </div>
 
 <% unless @codemirror_init %>
   <% @codemirror_init = true %>
   <% content_for :custom_javascript do %>