portupgrade.diff

--- a/portupgrade       2010-11-14 14:46:24.112307993 +0900
+++ b/portupgrade       2010-11-14 14:47:29.271209261 +0900
@@ -1001,7 +1001,7 @@
   rescue IgnoreMarkError => e
     $results << PkgResult.new(origin, :ignored, pkgname)
   rescue => e
-    $results << PkgResult.new(origin, e, pkgname)
+    $results << PkgResult.new(origin.nil? ? "nil" : origin, e, pkgname)
   ensure
     $use_packages, $use_packages_only = use_packages, use_packages_only
   end