qemu: monitor: Explain logic of qemuMonitorGetCPUInfo
qemu: monitor: Explain logic of qemuMonitorGetCPUInfo

The return value has non-obvious semantics. Document it.

taget/libvirt,andreabolognani/libvirt,datto/libvirt,taget/libvirt,fabianfreyer/libvirt,datto/libvirt,zippy2/libvirt,jfehlig/libvirt,zippy2/libvirt,zippy2/libvirt,jfehlig/libvirt,taget/libvirt,datto/libvirt,eskultety/libvirt,VenkatDatta/libvirt,taget/libvirt,olafhering/libvirt,nertpinx/libvirt,crobinso/libvirt,eskultety/libvirt,datto/libvirt,taget/libvirt,VenkatDatta/libvirt,jardasgit/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,libvirt/libvirt,crobinso/libvirt,nertpinx/libvirt,libvirt/libvirt,nertpinx/libvirt,olafhering/libvirt,crobinso/libvirt,jardasgit/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,olafhering/libvirt,rlaager/libvirt,rlaager/libvirt,jfehlig/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt,rlaager/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,rlaager/libvirt,andreabolognani/libvirt,jfehlig/libvirt,eskultety/libvirt,rlaager/libvirt,crobinso/libvirt,libvirt/libvirt,jardasgit/libvirt,nertpinx/libvirt,datto/libvirt,zippy2/libvirt,fabianfreyer/libvirt,olafhering/libvirt,fabianfreyer/libvirt,eskultety/libvirt,jardasgit/libvirt,eskultety/libvirt,libvirt/libvirt