Fix not using brackets for table name (Bug #1190186)

Change-Id: I1b6048b2029f5964cf6ee96f6a44de5d5c4c3aaa
Signed-off-by: Son Nguyen <son.nguyen@catalyst.net.nz>

htdocs/admin/users/report.php

@@ -162,7 +162,7 @@ else if ($selected == 'loginaslog') {
     $ph = array_merge($userids, $userids);
     $log = get_records_sql_array('
         SELECT *
-        FROM event_log
+        FROM {event_log}
         WHERE (usr IN (' . join(',', array_fill(0, count($userids), '?')) . ')
            OR realusr IN (' . join(',', array_fill(0, count($userids), '?')) . '))
           AND event = \'loginas\'

htdocs/lib/searchlib.php

@@ -256,7 +256,7 @@ function get_admin_user_search_results($search, $offset, $limit) {
                 artefacttype = \'email\'
                 AND LOWER(title) IN (
                     SELECT LOWER(title)
-                    FROM artefact
+                    FROM {artefact}
                     WHERE artefacttype = \'email\'
                     GROUP BY LOWER(title)
                     HAVING count(id) > 1