Wrapper around Go exec.Command to return stdout, stderr, and err

gistfile1.go

 func Exec(cmd string, args ...string) ([]byte, []byte, error) {
         if debug {
                 log.Printf("%s %v\n", cmd, args)
         }
         stdout := &bytes.Buffer{}
         stderr := &bytes.Buffer{}

         command := exec.Command(cmd, args...)
         command.Stdout = stdout
         command.Stderr = stderr

         err := command.Run()
         return stdout.Bytes(), stderr.Bytes(), err
 }