[idn] nameprep in application may break things

[Dan Oscarsson <Dan.Oscarsson@trab.se>]

I think having nameprep done in applications will break things.

If you do: nslookup Www.cisco.com
you get as an answer: 
Name:    WWW.cisco.com
Address:  198.133.219.25

If you do: nslookup Www.cisco.com
you get as an answer: 
Name:    Www.cisco.com
Address:  198.133.219.25


If you had nameprep in nslookup the answer in both cases would be:
Name:    www.cisco.com
Address:  198.133.219.25


This will break all scripts calling nslookup and the doing simple
string matching in the answer to test the result.
I am sure there are lots of scripts that expect this behaviour.

   Dan