test change for bad resource/backend combo.

I think this is probably in contention with my other PR on resource
initialization. We definitely need to change that, so this might fall
to the side. Or maybe just the test needs to be redone. We'll discuss
and see.

Signed-off-by: Ryan Davis <zenspider@chef.io>

test/functional/inspec_exec_test.rb

@@ -27,9 +27,8 @@ describe "inspec exec" do
     # TODO: I do not know how to test this more directly. It should be possible.
     inspec "exec -t aws:// #{profile_path}/incompatible_resource_for_transport.rb"
 
-    stdout.must_include "Bad File on TrainPlugins::Aws::Connection"
-    stdout.must_include "Resource `file` is not supported on platform aws/train-aws"
-    stderr.must_equal ""
+    stdout.must_be_empty
+    stderr.must_include "Unsupported resource/backend combination: file / aws. Exiting."
   end
 
   it "can execute the profile" do