network: Fix printing XML 'delay' attribute
network: Fix printing XML 'delay' attribute

When specifying bridge delay via network XML define, we were looking for
the 'delay' attribute, but would dump the value as 'forwardDelay'. Have
the output match the expected input (and schema).

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