Fix a few 'used uninitialized' warnings.

ChangeLog

+Wed May 13 13:37:02 EDT 2009 Cole Robinson <crobinso@redhat.com>
+
+	* src/virsh.c: Fix a few 'used uninitialized' warnings.
+
 Wed May 13 18:06:17 CEST 2009 Daniel Veillard <veillard@redhat.com>
 
 	* src/buf.c: avoid an XML attribute escaping bug #499791

src/virsh.c

@@ -4096,9 +4096,9 @@ cleanup:
 static xmlChar *
 makeCloneXML(char *origxml, char *newname) {
 
-    xmlDocPtr doc;
-    xmlXPathContextPtr ctxt;
-    xmlXPathObjectPtr obj;
+    xmlDocPtr doc = NULL;
+    xmlXPathContextPtr ctxt = NULL;
+    xmlXPathObjectPtr obj = NULL;
     xmlChar *newxml = NULL;
     int size;