"pwfeedback" Support Request

[GentsunCheng]

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Describe the feature you'd like see implemented in sudo-rs I would like to see the implementation of the pwfeedback feature in sudo-rs. This feature would provide visual feedback (such as * or .) when users input their passwords.

What problem can be solved with this feature? Currently, sudo-rs lacks the pwfeedback feature, which negatively impacts user experience. For example, I'm always frustrated when I enter my password and there is no visual feedback, making it unclear whether my input is being registered. This feature would fix this problem by providing immediate visual confirmation during password entry.

Describe alternatives you've considered I have not found any existing features in sudo-rs that address this issue. Alternatives like external password managers or custom scripts could be used, but they are not as integrated and seamless as having built-in support for pwfeedback. Additional context Implementing pwfeedback will align sudo-rs more closely with the traditional sudo command's functionality, providing a familiar experience for users transitioning to sudo-rs.