login_command.go

func LoginCommand(c *cli.Context) string, error {
	var password, account string
	var err error
	account = c.Args()[0]
	if len(c.Args()) == 0 {
                fmt.Print("Account: ")
		if _, err = fmt.Scanln(&account); err == nil {
			fmt.Print("Password: ")
			_, err = fmt.Scanln(&password)
		}
	} else if len(c.Args()) == 1 {
		prompt := fmt.Sprintf("Enter password for %s: ", account)
		password, err = gopass.GetPass(a[0].(string))
	}

        if err == nil {
               return Login(account, password)
        }
        else {
               return "", err
        } 
}

ou forgot to fix line 13 and that else on line 19 is useless
also, move line 4 after 11 so that if len(args) == 0 it won't panic