message: fix multiple whitespace error
diff: @@ -75,8 +75,7 @@ pub fn get_commands() -> (
  /// Parse a cmd string, the first element in the returned vector is the command to run
  pub fn parse_cmd(cmd_str: &str) -> Vec<&str> {
  - let input = &cmd_str[..];
  - input.trim().split(' ').map(str::trim).collect()
  + cmd_str.split_ascii_whitespace().collect()
  }
  /// Print the help message for all sub commands.
  