[Info-vax] Proper dismounting of disks at shutdown

[urbancamo]

Office Server has the following file - I'm sure they'll be an
equivalent version in the previous ALLIN1 incarnation:

$ type [office.lib_share]sm_shutdown.com

The main functionality is here:

$	OFFICESERVER/reenter/username='a1_account' -
		    /noinit/password="''a1_account_pass'"
	oa$ini_init
$DECK
	get cli$a1dir = profil.direct[oa$user]
	DO oa$lib:sm_shutdown
$EOD
$!
$       @OA$LIB:OA$SM_USER_KILL_ALL