-$sSQL .= " where placex.osm_id = i.osm_id and placex.osm_type = i.osm_type";
-$sSQL .= " and placex.class = i.class and placex.type = i.type";
-$aPolygons = chksql($oDB->getAll($sSQL), "Could not get list of deleted OSM elements.");
+$sSQL .= ' where placex.osm_id = i.osm_id and placex.osm_type = i.osm_type';
+$sSQL .= ' and placex.class = i.class and placex.type = i.type';
+$aPolygons = chksql($oDB->getAll($sSQL), 'Could not get list of deleted OSM elements.');