slightly longer log tail;

--- a/lib/Tools/usedir	Sat Nov 21 17:04:03 2009 +1100
+++ b/lib/Tools/usedir	Sat Nov 21 14:02:55 2009 +0100
@@ -262,7 +262,7 @@
 else
   { echo "$ITEM FAILED";
     echo "(see also $LOG)";
-    echo; tail -20 "$LOG"; echo; } >&2
+    echo; tail -40 "$LOG"; echo; } >&2
 fi
 
 exit "$RC"