[nsp] tcp small servers not small enough

[Ed Ravin]

When I turn on "service tcp-small-servers" on my 7200 box with 12.2(17a),
these new ports appear:

  7/tcp    open  echo
  9/tcp    open  discard
  13/tcp   open  daytime
  19/tcp   open  chargen

I only want echo and daytime to be available.  Is there any way, other
than ACLs on each interface, to disable them separately?  I didn't see
anything in the command-line help for "service tcp-small-servers", which
appears to have no tunable settings other than the maximum number of
servers.