SUSE-specific config file changes

In SUSE distros, the default vhostmd config file has historically only
enabled the vbd transport. Preserve the behavior by commenting the
recently added virtio transport. Users can uncomment it and restart
vhostmd if virtio transport is desired, similar to the xenstore transport.

In SUSE enterprise distros, the 'Vendor' field in package information
contains 'SUSE LLC <https://www.suse.com/>'. This field is used as the
value for the 'VirtualizationVendor' metric. The URL contains special
XML characters that need escaped. A simpler and perhaps better approach
is to strip the URL and only provide the company name. (One could argue
this hunk of the patch is upstream material.)

Index: vhostmd-1.2/vhostmd.xml
===================================================================
--- vhostmd-1.2.orig/vhostmd.xml
+++ vhostmd-1.2/vhostmd.xml
@@ -40,7 +40,7 @@ the logical && operator must be replaced
       <update_period>5</update_period>
       <path>/usr/sbin:/sbin:/usr/bin:/bin:/usr/share/vhostmd/scripts</path>
       <transport>vbd</transport>
-      <transport>virtio</transport>
+      <!-- <transport>virtio</transport> -->
       <!-- <transport>xenstore</transport> -->
     </globals>
     <metrics>
@@ -53,7 +53,7 @@ the logical && operator must be replaced
       <metric type="string" context="host">
         <name>VirtualizationVendor</name>
         <action>
-	  rpm -q --qf '%{VENDOR}\n' -qf /etc/os-release
+	  rpm -q --qf '%{VENDOR}\n' -f /etc/os-release | sed -e 's/&lt;.*//' -e 's/ *$//'
         </action>
       </metric>
       <metric type="string" context="host">