Index: wp-includes/l10n.php
===================================================================
--- wp-includes/l10n.php	(revision 5150)
+++ wp-includes/l10n.php	(working copy)
@@ -113,4 +113,14 @@
 	load_textdomain($domain, $mofile);
 }
 
-?>
+function load_importer_textdomain($domain) {
+	$locale = get_locale();
+	if (empty($locale)) {
+		$locale = 'en_US';
+	}
+	
+	$mofile = ABSPATH . "/wp-admin/import/$domain-$locale.mo";
+	load_textdomain($domain, $mofile);
+}
+
+?>
\ No newline at end of file