tool

var CmdTool = &base.Command{
	Run:       runTool,
	UsageLine: "go tool [-n] command [args...]",
	Short:     "run specified go tool",
	Long: `
Tool runs the go tool command identified by the arguments.
With no arguments it prints the list of known tools.

The -n flag causes tool to print the command that would be
executed but not execute it.

For more about each tool command, see 'go doc cmd/<command>'.
`,
}