Merge pull request rails#52567 from biow0lf/fix-date_field_tag-examples

Fix date_field_tag examples. [ci skip]

Author: rafaelfranca

actionview/lib/action_view/helpers/form_tag_helper.rb

@@ -727,14 +727,14 @@ def telephone_field_tag(name, value = nil, options = {})
       #   date_field_tag 'name'
       #   # => <input id="name" name="name" type="date" />
       #
-      #   date_field_tag 'date', '01/01/2014'
-      #   # => <input id="date" name="date" type="date" value="01/01/2014" />
+      #   date_field_tag 'date', '2014-12-31'
+      #   # => <input id="date" name="date" type="date" value="2014-12-31" />
       #
       #   date_field_tag 'date', nil, class: 'special_input'
       #   # => <input class="special_input" id="date" name="date" type="date" />
       #
-      #   date_field_tag 'date', '01/01/2014', class: 'special_input', disabled: true
-      #   # => <input disabled="disabled" class="special_input" id="date" name="date" type="date" value="01/01/2014" />
+      #   date_field_tag 'date', '2014-12-31', class: 'special_input', disabled: true
+      #   # => <input disabled="disabled" class="special_input" id="date" name="date" type="date" value="2014-12-31" />
       def date_field_tag(name, value = nil, options = {})
         text_field_tag(name, value, options.merge(type: :date))
       end