Don't list "direct" under default post privacy settings

app/views/settings/preferences/show.html.haml

@@ -7,7 +7,7 @@
   .fields-group
     = f.input :locale, collection: I18n.available_locales, wrapper: :with_label, include_blank: false, label_method: lambda { |locale| human_locale(locale) }
 
-    = f.input :setting_default_privacy, collection: Status.visibilities.keys - [:direct], wrapper: :with_label, include_blank: false, label_method: lambda { |visibility| I18n.t("statuses.visibilities.#{visibility}") }, required: false
+    = f.input :setting_default_privacy, collection: Status.visibilities.keys - ['direct'], wrapper: :with_label, include_blank: false, label_method: lambda { |visibility| I18n.t("statuses.visibilities.#{visibility}") }, required: false
 
   .fields-group
     = f.simple_fields_for :notification_emails, hash_to_object(current_user.settings.notification_emails) do |ff|