virsh: Print error message if argument parsing fails for cmdNodesuspend
virsh: Print error message if argument parsing fails for cmdNodesuspend

If parsing of arguments failed, virsh did silently exit returning and
error state, but not specifying the possible problem.

 * tools/virsh: cmdNodesuspend: - error handling added

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