Index: includes/locale.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/locale.inc,v
retrieving revision 1.174.2.14
diff -u -p -r1.174.2.14 locale.inc
--- includes/locale.inc	11 Aug 2010 19:42:26 -0000	1.174.2.14
+++ includes/locale.inc	12 Aug 2010 09:42:20 -0000
@@ -1299,9 +1299,6 @@ function _locale_import_one_string($op, 
             list($nplurals, $plural) = $p;
             db_query("UPDATE {languages} SET plurals = %d, formula = '%s' WHERE language = '%s'", $nplurals, $plural, $lang);
           }
-          else {
-            db_query("UPDATE {languages} SET plurals = %d, formula = '%s' WHERE language = '%s'", 0, '', $lang);
-          }
         }
         $headerdone = TRUE;
       }