[libvirt] [PATCH] Fix yet another printf("%s", NULL) case

[john levon sun com]

# HG changeset patch
# User john levon sun com
# Date 1233282885 28800
# Node ID 6ee939f57a02bf9d332f094e07180e0149e85924
# Parent  c60439e564f90b579c07f6349f8f0810a5da1032
Fix yet another printf("%s", NULL) case

Signed-off-by: John Levon <john levon sun com>

diff --git a/src/libvirt.c b/src/libvirt.c
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -2691,7 +2691,7 @@ virDomainMigrate (virDomainPtr domain,
     char *dom_xml = NULL;
     int cookielen = 0, ret, version = 0;
     DEBUG("domain=%p, dconn=%p, flags=%lu, dname=%s, uri=%s, bandwidth=%lu",
-          domain, dconn, flags, dname, uri, bandwidth);
+          domain, dconn, flags, NULLSTR(dname), NULLSTR(uri), bandwidth);
 
     virResetLastError();