Index: xml_format.inc
===================================================================
--- xml_format.inc	(revision 1825)
+++ xml_format.inc	(working copy)
@@ -111,11 +111,11 @@
         }
       }
       else {
-        @$_tx_terms[$_tx_term][$_tx_tag] .= trim($data);
+        $_tx_terms[$_tx_term][$_tx_tag] = isset($_tx_terms[$_tx_term][$_tx_tag]) ? $_tx_terms[$_tx_term][$_tx_tag] . $data : $data;
       }
       break;
     default:
-      $_tx_vocabulary[$_tx_tag] = isset($_tx_vocabulary[$_tx_tag]) ? $_tx_vocabulary[$_tx_tag] .= trim($data) : trim($data);
+      $_tx_vocabulary[$_tx_tag] = isset($_tx_vocabulary[$_tx_tag]) ? $_tx_vocabulary[$_tx_tag] . $data : $data;
       // (PHP strict is boring for lazy coders.)
   }
 }