dtext_field: use the field name as the label, not "Body".

For flags and appeals, the reason field should be labeled Reason, not Body.

app/helpers/application_helper.rb

@@ -126,7 +126,7 @@ module ApplicationHelper
   end
 
   def dtext_field(object, name, options = {})
-    options[:name] ||= "Body"
+    options[:name] ||= name.capitalize
     options[:input_id] ||= "#{object}_#{name}"
     options[:input_name] ||= "#{object}[#{name}]"
     options[:value] ||= instance_variable_get("@#{object}").try(name)