always use brackets on if statements

This adds bracket around all one-line if statements that did
not have them yet.

lib-php/template/search-batch-json.php

@@ -5,7 +5,9 @@ $aOutput['licence'] = 'Data © OpenStreetMap contributors, ODbL 1.0. https://osm
 $aOutput['batch'] = array();
 
 foreach ($aBatchResults as $aSearchResults) {
-    if (!$aSearchResults) $aSearchResults = array();
+    if (!$aSearchResults) {
+        $aSearchResults = array();
+    }
     $aFilteredPlaces = array();
     foreach ($aSearchResults as $iResNum => $aPointDetails) {
         $aPlace = array(