Fixed #19331 -- Added missing trailing slash in auth admin template

Thanks ppetrid at yawd.eu for the report.

django/contrib/admin/templates/admin/auth/user/change_password.html

@@ -13,7 +13,7 @@
 <a href="{% url 'admin:index' %}">{% trans 'Home' %}</a>
 &rsaquo; <a href="{% url 'admin:app_list' app_label=opts.app_label %}">{{ opts.app_label|capfirst|escape }}</a>
 &rsaquo; <a href="{% url opts|admin_urlname:'changelist' %}">{{ opts.verbose_name_plural|capfirst }}</a>
-&rsaquo; <a href="{% url opts|admin_urlname:'changelist' %}{{ original.pk }}">{{ original|truncatewords:"18" }}</a>
+&rsaquo; <a href="{% url opts|admin_urlname:'changelist' %}{{ original.pk }}/">{{ original|truncatewords:"18" }}</a>
 &rsaquo; {% trans 'Change password' %}
 </div>
 {% endblock %}