change minor mistake of spelling

Signed-off-by: allencloud <allen.sun@daocloud.io>

command/registry/logout.go

@@ -11,7 +11,7 @@ import (
 	"github.com/spf13/cobra"
 )
 
-// NewLogoutCommand creates a new `docker login` command
+// NewLogoutCommand creates a new `docker logout` command
 func NewLogoutCommand(dockerCli *command.DockerCli) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "logout [SERVER]",

command/system/info.go

@@ -277,7 +277,7 @@ func prettyPrintInfo(dockerCli *command.DockerCli, info types.Info) error {
 		for _, label := range info.Labels {
 			stringSlice := strings.SplitN(label, "=", 2)
 			if len(stringSlice) > 1 {
-				// If there is a conflict we will throw out an warning
+				// If there is a conflict we will throw out a warning
 				if v, ok := labelMap[stringSlice[0]]; ok && v != stringSlice[1] {
 					fmt.Fprintln(dockerCli.Err(), "WARNING: labels with duplicate keys and conflicting values have been deprecated")
 					break