[tac_plus] Should optional A/V pair be sent?

[heasley]

Wed, Jan 25, 2012 at 08:20:50AM -0700, Daniel Schmidt:
> This I why I added the "av_pair kluging" to do_auth.  Users with Nexus,
> Brocade, Cisco, XR & whatever can all play nice together on one tac_plus
> server.  And, network operators can all have appropriate read-only
> accounts, despite vendor differences.  It's not to fix the limitations of
> tac_plus, it's to fix the limitations (bugs) of the vendors.  Well, that
> and multiple groups per user.

I'll leave the code as is for now.  perhaps a host {} knob to enable it
is appropriate, or disable it.