Pass io.Writer when pushing images/manifests from command line

[NO NEW TESTS NEEDED]

Signed-off-by: Vladimir Kochnev <[email protected]>

cmd/podman/images/push.go

@@ -164,6 +164,10 @@ func imagePush(cmd *cobra.Command, args []string) error {
 		pushOptions.Password = creds.Password
 	}
 
+	if !pushOptions.Quiet {
+		pushOptions.Writer = os.Stderr
+	}
+
 	if err := common.PrepareSigningPassphrase(&pushOptions.ImagePushOptions, pushOptions.SignPassphraseFileCLI); err != nil {
 		return err
 	}

cmd/podman/manifest/push.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"io/ioutil"
+	"os"
 
 	"github.com/containers/common/pkg/auth"
 	"github.com/containers/common/pkg/completion"
@@ -122,6 +123,10 @@ func push(cmd *cobra.Command, args []string) error {
 		manifestPushOpts.Password = creds.Password
 	}
 
+	if !manifestPushOpts.Quiet {
+		manifestPushOpts.Writer = os.Stderr
+	}
+
 	if err := common.PrepareSigningPassphrase(&manifestPushOpts.ImagePushOptions, manifestPushOpts.SignPassphraseFileCLI); err != nil {
 		return err
 	}