Fix Alamanc service paging

Summary: Ref T8686. This method has the wrong name and calls a nonexistent method on `$service`.

Test Plan: Set page size to 5, paged locally, hit error, applied changes, got clean paging.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T8686

Differential Revision: https://secure.phabricator.com/D13460

src/applications/almanac/query/AlmanacServiceQuery.php

@@ -194,11 +194,11 @@ final class AlmanacServiceQuery
     );
   }
 
-  protected function getValueMap($cursor, array $keys) {
+  protected function getPagingValueMap($cursor, array $keys) {
     $service = $this->loadCursorObject($cursor);
     return array(
       'id' => $service->getID(),
-      'name' => $service->getServiceName(),
+      'name' => $service->getName(),
     );
   }