This doesn't add very much value for now, but future test for virresctrl will
take information from vircaps2xmldata (since it is dependent on the same info
then why duplicate it) and this particular use case helps us cover bit more of
the code regarding proper formatting and handling errors.  And one more test for
vircaps2xmltest doesn't hurt either.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>