vgroup_id	IN:	Vgroup identifier returned by Vattach
	n_entries	OUT:	Number of entries in a vgroup
	vgroup_name	OUT:	Name of a vgroup

	Purpose	Retrieves the number of entries in a vgroup and its name.
	Return value	Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
	Description	Vinquire retrieves the name of and the number of entries in the vgroup identified by the parameter vgroup_id into the buffer vgroup_name and the parameter n_entries, respectively.
		The maximum length of the vgroup name is defined by VGNAMELENMAX (or 64).

	FORTRAN	integer function vfinq(vgroup_id, n_entries, vgroup_name)
		integer vgroup_id, n_entries
		character*(*) vgroup_name