minor #11085 Fixed a html error "Element ul is not closed" in logger.html.twig (hason)

This PR was merged into the 2.3 branch.

Discussion
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Fixed a html error "Element ul is not closed" in logger.html.twig

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
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e3bf86f Fixed a html error "Element ul is not closed" in logger.html.twig

src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/logger.html.twig

@@ -113,7 +113,9 @@
 
             <li>Called from {{ call.file is defined and call.line is defined ? call.file|format_file(call.line, from) : from|raw }}</li>
 
-            {{ index == log.context.stack|length - 1 ? '</ul>' : '' }}
+            {% if index == log.context.stack|length - 1 %}
+                </ul>
+            {% endif %}
         {% endfor %}
     {% else %}
         {{ log.priorityName }} - {{ log.message }}