anchor.diff:    FORM_ATTRIBUTES = %i[
   <%=
     form_attributes.map do |attr|
  -    "  #{attr}"
  +    "    #{attr}"
     end.join("\n")
   %>
     ].freeze
  
positive.code:   SHOW_PAGE_ATTRIBUTES = %i[
  <%=
    attributes.map do |attr|
      "  #{attr}"
    end.join("\n")
  %>
    ].freeze
  
negative.code:   COLLECTION_ATTRIBUTES = %i[
  <%=
    attributes.first(COLLECTION_ATTRIBUTE_LIMIT).map do |attr|
      "    #{attr}"
    end.join("\n")
  %>
    ].freeze
  