qemu: modify 3 error messages
qemu: modify 3 error messages

After the cleanup of remote display port allocation, I noticed some
messages that didn't make a lot of sense the way they were written. So
I rephrased them.

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