Fix whitespaces in event-history

overview-plugin-output now has white-space: pre-wrap

modules/monitoring/application/views/scripts/partials/event-history.phtml

@@ -143,14 +143,11 @@ $history->limit($limit * $page);
                         ) ?>
                     <?php endif ?>
                 <?php endif ?>
-                <p class="overview-plugin-output">
-                    <?php if ($icon) {
+                <p class="overview-plugin-output"><?php if ($icon) {
                     echo $this->icon($icon, null, $iconCssClass ? array('class' => $iconCssClass) : array());
-                    } ?>
-                    <?= $this->nl2br($this->createTicketLinks($this->escapeComment($msg)))
+                } ?><?= $this->nl2br($this->createTicketLinks($this->escapeComment($msg)))
                 // TODO(ak): this allows only a[href] in messages, but plugin output allows more
-                    ?>
-                </p>
+                ?></p>
             </td>
         </tr>
         <?php endforeach ?>