Description of problem:
Please add a whois server for .ht, currently /etc/jwhois.conf doesn't mention 
any for this TLD. According to http://www.iana.org/domains/root/db/ht.html from 
IANA there is one, "whois.nic.ht", so let's use it.

Version-Release number of selected component (if applicable):
jwhois-4.0-10

How reproducible:
Everytime, whois query fails.

Actual results:
# whois nic.ht
[Querying whois.internic.net]
[whois.internic.net]
[...]
#

Expected results:
Add the following line in /etc/jwhois.conf after "\\.hr$" to get it working: 

  "\\.ht$" = "whois.nic.ht";

Afterwards a whois for .ht looks much better:

# whois nic.ht
[Abfragen von whois.nic.ht]
[whois.nic.ht]
[...]
#

Additional info:
Please try to get this fix upstream - upstream is unluckily always very very
unresponsive to me.