--- scripts/dpkg-divert.pl.orig	2007-06-17 21:22:04.000000000 +0000
+++ scripts/dpkg-divert.pl	2007-06-17 21:31:19.000000000 +0000
@@ -223,7 +223,7 @@
 sub infol {
     return (($_[2] eq ':' ? "local " : length($_[2]) ? "" : "any ").
             "diversion of $_[0]".
-            (length($_[1]) ? " to $_[1]" : "").
+            (defined $_[1] && length($_[1]) ? " to $_[1]" : "").
             (length($_[2]) && $_[2] ne ':' ? " by $_[2]" : ""));
 }