(lyskomd_host): Use adnshost to set it, so that it is set the same way

	as when lyskomd is running.

src/server/testsuite/config/unix.exp

@@ -77,7 +77,7 @@ set line_leader ""
 set meta_line_leader ""
 
 # Values that show up in protocol messages
-set lyskomd_host [exec python -c "import socket\nprint socket.gethostbyaddr(\"127.0.0.1\")\[0\]"]
+set lyskomd_host [lindex [exec ../../libraries/adns/client/adnshost -i 127.0.0.1] 2]
 
 # valgrind support
 set valgrindix 0