"host" is not a command argument. Rob
Index: vmctl.8 =================================================================== RCS file: /cvs/src/usr.sbin/vmctl/vmctl.8,v retrieving revision 1.13 diff -u -p -r1.13 vmctl.8 --- vmctl.8 18 Aug 2016 16:12:05 -0000 1.13 +++ vmctl.8 12 Sep 2016 01:36:59 -0000 @@ -28,8 +28,7 @@ The .Nm utility is used to control the virtual machine monitor (VMM) subsystem. -A VMM manages virtual machines (VMs) on a -.Ar host . +A VMM manages virtual machines (VMs) on a host. The VMM subsystem is responsible for creating, destroying, and executing VMs. .Pp