virsh: Fix grammar - s/rather then/rather than
virsh: Fix grammar - s/rather then/rather than

Signed-off-by: Chen Hanxiao <818f8a165c25fa146ecad28e2ef3e3fb996fa364@gmail.com>

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