util: avoid fds leak when virEventPollAddHandle fail
util: avoid fds leak when virEventPollAddHandle fail

* src/util/event_poll.c: avoid file descriptors leak when
  virEventPollAddHandle fail on virEventPollInit function.

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