From cdb00e9ef8d6e97bc8d42f781b026267c73d91d1 Mon Sep 17 00:00:00 2001
From: Bastian Kleineidam <calvin@debian.org>
Date: Mon, 21 Mar 2011 16:07:45 +0100
Subject: [PATCH] Do not write empty tag attributes.

---
 linkcheck/logger/customxml.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/linkcheck/logger/customxml.py b/linkcheck/logger/customxml.py
index c59f5569..c3569ff9 100644
--- a/linkcheck/logger/customxml.py
+++ b/linkcheck/logger/customxml.py
@@ -72,7 +72,9 @@ class CustomXMLLogger (xmllog.XMLLogger):
         if url_data.warnings and self.has_part('warning'):
             self.xml_starttag(u"warnings")
             for tag, data in url_data.warnings:
-                attrs = {"tag": tag}
+                attrs = {}
+                if tag:
+                    attrs["tag"] = tag
                 self.xml_tag(u"warning", data, attrs)
             self.xml_endtag(u"warnings")
         if self.has_part("result"):