Merge component 'cli' from git@github.com:docker/cli master

components/cli/cli/command/container/run_test.go

@@ -2,6 +2,7 @@ package container
 
 import (
 	"fmt"
+	"io/ioutil"
 	"testing"
 
 	"github.com/docker/cli/internal/test"
@@ -66,6 +67,7 @@ func TestRunCommandWithContentTrustErrors(t *testing.T) {
 		cli.SetNotaryClient(tc.notaryFunc)
 		cmd := NewRunCommand(cli)
 		cmd.SetArgs(tc.args)
+		cmd.SetOutput(ioutil.Discard)
 		err := cmd.Execute()
 		assert.Assert(t, err != nil)
 		assert.Assert(t, is.Contains(cli.ErrBuffer().String(), tc.expectedError))