Auto merge of rust-lang#13570 - Kijewski:pr-stray-comma, r=xFrednet

docs: remove stray comma

changelog: none

the typo was (seemingly) ignored by browsers, so the change isn't visible to users

util/gh-pages/index_template.html

@@ -104,7 +104,7 @@ <h1>Clippy Lints</h1> {# #}
  <li role="separator" class="divider"></li> {# #}
  </ul> {# #}
  </div> {# #}
- <div class="btn-group", id="lint-applicabilities" tabindex="-1"> {# #}
+ <div class="btn-group" id="lint-applicabilities" tabindex="-1"> {# #}
  <button type="button" class="btn btn-default dropdown-toggle"> {# #}
  Applicability {#+ #}
  <span class="badge">4</span> {#+ #}