Syntax error when attempt ZSH completion for ValueEnum variants

[KSXGitHub]

Notes

This bug is very specific to my application that I haven't managed to create a minimal reproducible code yet. So instead, I'll be providing links to my application.

Please complete the following tasks

• I have searched the discussions
• I have searched the open and rejected issues

Rust Version

1.62.1

Clap Version

3.2.16

Minimal reproducible code

N/A

Steps to reproduce

1. Create an executable at /usr/bin/pdu. Or alternatively, install pdu.
2. Download and install the zsh completions for pdu at /usr/share/zsh/site-functions/_pdu (this file was generated by ./generate-completion.sh).
3. Open ZSH login shell, type pdu --bytes-format= and then press Tab.

Actual Behaviour

The following error appears:

(eval):2: unmatched "
_arguments:465: command not found: (
(eval):2: unmatched "
_arguments:465: command not found: (
(eval):2: unmatched "
_arguments:465: command not found: (

Expected Behaviour

A completion menu of plain, metric, and binary should appear to let user choose.

Additional Context

• ZSH version: 5.9
• OS: Arch Linux
• The Args struct: https://github.com/KSXGitHub/parallel-disk-usage/blob/0.8.2/src/args.rs
• The completion generator: https://github.com/KSXGitHub/parallel-disk-usage/blob/0.8.2/cli/completions.rs

If you have an Arch Linux machine, you can also install the AUR package (bin version).

Debug Output

No response