cf -t target does not trace

[trastle]

When I target a new cloud controller, ie one which I am not logged on to there is no trace available:

tastle@tastle-w500 G=master micro-bosh-install $ cf -t target http://9.10.5.180:9022
Setting target to http://9.10.5.180:9022... FAILED
Target refused connection.

[andypiper]

Confirmed. The command provides no output if there's no active login (I assume that the command is at least attempting to validate the URL and endpoint).