Microsoft say that the warning c4592 we get there in vs2015-r1 is a bug
on their side. Ignore it for now

Change-Id: I820840a50932e42371947cdc10d1e09278f744ca
Reviewed-on: https://gerrit.libreoffice.org/22593Reviewed-by: David Ostrovsky <david@ostrovsky.org>
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>