Update a test case to verify that custom attributes which are defined in the config are also masked.
Update a test case to verify that custom attributes which are defined in
the config are also masked.

StackStorm/st2,Plexxi/st2,nzlosh/st2,nzlosh/st2,StackStorm/st2,Plexxi/st2,Plexxi/st2,nzlosh/st2,nzlosh/st2,Plexxi/st2,StackStorm/st2,StackStorm/st2