update integration-cli tests for stderr output

Signed-off-by: Riyaz Faizullabhoy <riyaz.faizullabhoy@docker.com>
(cherry picked from commit 250b84ee8820d5ac28f223ef3affdffeff7ee026)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
(cherry picked from commit d256539bf422fe6dc84c720c9153823c05396a3e)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
(cherry picked from commit 5742bd3ccf41601e363cd0bc8d8e45cd54973eed)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
diff --git a/integration-cli/trust_server_test.go b/integration-cli/trust_server_test.go
index 19abe87..39e7c07 100644
--- a/integration-cli/trust_server_test.go
+++ b/integration-cli/trust_server_test.go
@@ -41,7 +41,7 @@
 const notaryURL = "https://" + notaryHost
 
 var SuccessTagging = icmd.Expected{
-	Out: "Tagging",
+	Err: "Tagging",
 }
 
 var SuccessSigningAndPushing = icmd.Expected{