conf: Improve error messages if parsing of vCPU count fails
conf: Improve error messages if parsing of vCPU count fails

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