line item properties in cart

gistfile1.txt

                    {% for p in item.properties %}
                    {% assign first_character_in_key = p.first | truncate: 1, '' %}
                    {% unless p.last == blank or first_character_in_key == '_' %}
                      {{ p.first }}:
                        {{ p.last }}
                      <br>
                    {% endunless %}
                  {% endfor %}