diff -up sos-2.2/sos/plugins/libvirt.py.orig sos-2.2/sos/plugins/libvirt.py
--- sos-2.2/sos/plugins/libvirt.py.orig	2013-10-21 13:39:46.918594251 +0100
+++ sos-2.2/sos/plugins/libvirt.py	2013-10-21 13:40:00.155638230 +0100
@@ -25,5 +25,5 @@ class libvirt(sos.plugintools.PluginBase
     def postproc(self):
         for xmlfile in glob.glob("/etc/libvirt/qemu/*.xml"):
             self.doRegexSub(xmlfile,
-                    r"(.*passwd=\s*')([^']*)('.*$)",
+                    r"(.*passwd=\s*['\"])([^'\"]*)(['\"].*)",
                     r"\1******\3")