Merge pull request #32282 from mstanleyjones/improve-attach-desc

Clarify meaning of docker attach

command/container/attach.go

@@ -28,7 +28,7 @@ func NewAttachCommand(dockerCli *command.DockerCli) *cobra.Command {
 
 	cmd := &cobra.Command{
 		Use:   "attach [OPTIONS] CONTAINER",
-		Short: "Attach to a running container",
+		Short: "Attach local standard input, output, and error streams to a running container",
 		Args:  cli.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			opts.container = args[0]