Fixing duplicate lang string (Bug #1393622)

Have adjusted the testclient to alert bad user/pass for one of the
strings - this should be ok as it's only for the testclient interface, which
only the admins can see.

Change-Id: I5f8857058243108715ef19e7d51587b9bf800f7b
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>
Merge "Fixing duplicate lang string (Bug #1393622)"