and make it format the output nicely, so I don't have to use 'xmllint
--format' before I can read it.

Change-Id: I065ee93193f3c6c7bab87212ab96021fb0d7c5ed
Reviewed-on: https://gerrit.libreoffice.org/29407Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>