In Drydock log views, respect newlines

Summary: Depends on D19070. Ref T13073. Some messages contain an interesting story or a clever anecdote. Respect newlines during rendering to preserve authorial intent.

Test Plan:
Viewed a message with linebreaks and could still read it.

{F5427754}

Subscribers: PHID-OPKG-gm6ozazyms6q6i22gyam

Maniphest Tasks: T13073

Differential Revision: https://secure.phabricator.com/D19071

src/applications/drydock/view/DrydockLogListView.php

@@ -53,6 +53,7 @@ final class DrydockLogListView extends AphrontView {
           $type = $type_object->getLogTypeName();
           $icon = $type_object->getLogTypeIcon($log_data);
           $data = $type_object->renderLog($log_data);
+          $data = phutil_escape_html_newlines($data);
         } else {
           $type = pht('<Unknown: %s>', $type_key);
           $data = null;