macvtap: fix 2 nla_put expressions (non-serious bug)
macvtap: fix 2 nla_put expressions (non-serious bug)

This patch fixes 2 occurrences of nla_put expression with a '!' in
front of them that basically prevented the detection that the buffer
is too small. However, code further below would then detect that the
buffer is too small when further parts are added to the netlink message.

eskultety/libvirt,zhlcindy/libvirt-1.1.4-maintain,VenkatDatta/libvirt,danwent/libvirt-ovs,kantai/libvirt-vfork,zippy2/libvirt,dumbbell/libvirt,elmarco/libvirt,jeckersb/libvirt,rmarwaha/libvirt,VenkatDatta/libvirt,novel/fbsd-libvirt,danwent/libvirt-ovs,usc-isi/libvirt,taget/libvirt,jardasgit/libvirt,jardasgit/libvirt,iam-TJ/libvirt,rlaager/libvirt,emaste/libvirt,jardasgit/libvirt,rlaager/libvirt,wiedi/libvirt,kantai/libvirt-vfork,nertpinx/libvirt,novel/fbsd-libvirt,bjzhang/libvirt,usc-isi/libvirt,rlaager/libvirt,leilihh/libvirt,foomango/libvirt,bjzhang/libvirt,danwent/libvirt-ovs,libvirt/libvirt,bjzhang/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,agx/libvirt,iam-TJ/libvirt,soulxu/libvirt-xuhj,fabianfreyer/libvirt,eskultety/libvirt,emaste/libvirt,warewolf/libvirt,rmarwaha/libvirt1,leilihh/libvirt,siboulet/libvirt-openvz,soulxu/libvirt-xuhj,fabianfreyer/libvirt,datto/libvirt,andreabolognani/libvirt,danwent/libvirt-ovs,elmarco/libvirt,rmarwaha/libvirt1,agx/libvirt,olafhering/libvirt,cbosdo/libvirt,andreabolognani/libvirt,emaste/libvirt,rbu/libvirt,crobinso/libvirt,agx/libvirt,warewolf/libvirt,cbosdo/libvirt,elmarco/libvirt,jeckersb/libvirt,jfehlig/libvirt,kantai/libvirt-vfork,shugaoye/libvirt,elmarco/libvirt,emaste/libvirt,nertpinx/libvirt,zhlcindy/libvirt-1.1.4-maintain,VenkatDatta/libvirt,datto/libvirt,elmarco/libvirt,rmarwaha/libvirt1,rmarwaha/libvirt,zhlcindy/libvirt-1.1.4-maintain,trainstack/libvirt,andreabolognani/libvirt,taget/libvirt,taget/libvirt,cbosdo/libvirt,dumbbell/libvirt,jeckersb/libvirt,novel/fbsd-libvirt,warewolf/libvirt,wiedi/libvirt,nertpinx/libvirt,rmarwaha/libvirt,jardasgit/libvirt,kantai/libvirt-vfork,andreabolognani/libvirt,foomango/libvirt,dumbbell/libvirt,datto/libvirt,zippy2/libvirt,leilihh/libvirt,nertpinx/libvirt,usc-isi/libvirt,leilihh/libvirt,soulxu/libvirt-xuhj,kantai/libvirt-vfork,novel/fbsd-libvirt,siboulet/libvirt-openvz,leilihh/libvirt,libvirt/libvirt,dumbbell/libvirt,foomango/libvirt,rmarwaha/libvirt1,taget/libvirt,olafhering/libvirt,leilihh/libvirt,wiedi/libvirt,bjzhang/libvirt,danwent/libvirt-ovs,rmarwaha/libvirt1,novel/fbsd-libvirt,crobinso/libvirt,foomango/libvirt,jardasgit/libvirt,novel/fbsd-libvirt,siboulet/libvirt-openvz,shugaoye/libvirt,novel/fbsd-libvirt,dumbbell/libvirt,olafhering/libvirt,jeckersb/libvirt,iam-TJ/libvirt,cbosdo/libvirt,agx/libvirt,trainstack/libvirt,andreabolognani/libvirt,rmarwaha/libvirt,usc-isi/libvirt,trainstack/libvirt,zippy2/libvirt,rmarwaha/libvirt1,rlaager/libvirt,rbu/libvirt,iam-TJ/libvirt,fabianfreyer/libvirt,usc-isi/libvirt,iam-TJ/libvirt,wiedi/libvirt,zippy2/libvirt,VenkatDatta/libvirt,warewolf/libvirt,jfehlig/libvirt,soulxu/libvirt-xuhj,fabianfreyer/libvirt,wiedi/libvirt,agx/libvirt,jeckersb/libvirt,iam-TJ/libvirt,emaste/libvirt,jeckersb/libvirt,trainstack/libvirt,rbu/libvirt,bjzhang/libvirt,jeckersb/libvirt,rmarwaha/libvirt,libvirt/libvirt,siboulet/libvirt-openvz,datto/libvirt,soulxu/libvirt-xuhj,eskultety/libvirt,crobinso/libvirt,dumbbell/libvirt,crobinso/libvirt,zhlcindy/libvirt-1.1.4-maintain,zhlcindy/libvirt-1.1.4-maintain,wiedi/libvirt,datto/libvirt,eskultety/libvirt,warewolf/libvirt,warewolf/libvirt,jfehlig/libvirt,olafhering/libvirt,taget/libvirt,iam-TJ/libvirt,trainstack/libvirt,trainstack/libvirt,warewolf/libvirt,wiedi/libvirt,fabianfreyer/libvirt,foomango/libvirt,rbu/libvirt,siboulet/libvirt-openvz,libvirt/libvirt,nertpinx/libvirt,novel/fbsd-libvirt,emaste/libvirt,cbosdo/libvirt,rbu/libvirt,shugaoye/libvirt,eskultety/libvirt,emaste/libvirt,rmarwaha/libvirt,shugaoye/libvirt,rlaager/libvirt,trainstack/libvirt,shugaoye/libvirt,novel/fbsd-libvirt