conf: Clean up and report error in virDomainGenerateMachineName
conf: Clean up and report error in virDomainGenerateMachineName

Signed-off-by: Martin Kletzander <e82f23e74d43760279ebcc505dac4ae70d5627d0@redhat.com>

andreabolognani/libvirt,zippy2/libvirt,olafhering/libvirt,eskultety/libvirt,libvirt/libvirt,eskultety/libvirt,fabianfreyer/libvirt,crobinso/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,olafhering/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,nertpinx/libvirt,jfehlig/libvirt,nertpinx/libvirt,eskultety/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,andreabolognani/libvirt,jardasgit/libvirt,jardasgit/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt,jardasgit/libvirt,eskultety/libvirt,jfehlig/libvirt,crobinso/libvirt,jfehlig/libvirt,zippy2/libvirt,olafhering/libvirt,nertpinx/libvirt,libvirt/libvirt,olafhering/libvirt,zippy2/libvirt,libvirt/libvirt,nertpinx/libvirt,zippy2/libvirt,crobinso/libvirt,eskultety/libvirt,libvirt/libvirt,andreabolognani/libvirt,crobinso/libvirt