Merge branch '2.8' into 3.1

* 2.8:
  Disable CLI color for Windows 10 greater than 10.0.10586
  Exception details break the layout
  [HttpKernel] Remove wrong docblock
  [HttpKernel] Fix HttpCache validation HTTP method
  Move space from the before 'if' to the after 'if'
  [TwigBundle] Add a check for choice's attributes emptiness before calling block('attributes')

Author: nicolas-grekas

Resources/views/Form/form_div_layout.html.twig

@@ -79,8 +79,7 @@
                 {{- block('choice_widget_options') -}}
             </optgroup>
         {%- else -%}
-            {% set attr = choice.attr %}
-            <option value="{{ choice.value }}" {{ block('attributes') }}{% if choice is selectedchoice(value) %} selected="selected"{% endif %}>{{ choice_translation_domain is same as(false) ? choice.label : choice.label|trans({}, choice_translation_domain) }}</option>
+            <option value="{{ choice.value }}"{% if choice.attr %} {% set attr = choice.attr %}{{ block('attributes') }}{% endif %}{% if choice is selectedchoice(value) %} selected="selected"{% endif %}>{{ choice_translation_domain is same as(false) ? choice.label : choice.label|trans({}, choice_translation_domain) }}</option>
         {%- endif -%}
     {% endfor %}
 {%- endblock choice_widget_options -%}