regression from...

commit 9830fd36
Date:   Sun Mar 17 08:36:26 2013 +0100

    date/time IDL datatypes incompatible change

Change-Id: I2f4b64a73b5529ba190acc678d907761bb568bbf
Reviewed-on: https://gerrit.libreoffice.org/54009Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>