Add %%managment token to catch in dhcpd_makeconf, used to create

the private network for ilo management interfaces.

dhcpd/dhcpd.conf.template.in

@@ -90,6 +90,8 @@ shared-network emulab {
 	}
  }
 
+ %%management
+
  #
  # Private network; for virtual (jailed) nodes.
  #