do not destroy the VM when we say we stop it!

howto/retire-a-host.md

@@ -190,7 +190,7 @@ of an emergency:
     * If the VM is on a KVM host: `virsh shutdown $host`, or at least stop the
     primary service on the machine
 
-    * If the machine is on ganeti: `gnt-instance remove $host`
+    * If the machine is on ganeti: `gnt-instance stop $host`
     TODO: move this into Fabric
  4. after a delay, retire the host from its parent, backups and
     Puppet, for example: