Extract list of properties from AD user objects to XML

I'm using this powershell script, http://ift.tt/1uCCGHI, to extract properties from AD user objects.

When I run this command:

.\Get-UserADProperties2.ps1 givenName,sn,department,mail,telephoneNumber -searchroot 'http://LDAPou=users,ou=EMP,dc=emp,dc=company,dc=com' | Export-Clixml C:\XML\ADInfo.xml

the tags in the xml file look like this:

  <Obj RefId="1">
    <TNRef RefId="0" />
    <MS>
      <S N="department">Information Systems</S>
      <S N="mail">jane.doe@company.com</S>
      <S N="sn">Doe</S>
    </MS>
  </Obj>

How can I get the export so the tags look like this:

<Obj RefId="1">
    <TNRef RefId="0" />
    <MS>
      <department>Information Systems</department>
      <mail>jane.doe@company.com</mail>
      <lname>Doe</lname>
    </MS>
  </Obj>