clap_complete_nushell: multi line comments break with verbatim_doc_comment

[NyCodeGHG]

Please complete the following tasks

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

Rust Version

rustc 1.71.0 (8ede3aae2 2023-07-12)

Clap Version

4.4.1 (clap_complete_nushell)

Minimal reproducible code

use std::io;
use clap::{Parser, CommandFactory};
use clap_complete::generate;
use clap_complete_nushell::Nushell;

fn main() {
    let mut cmd = Cli::command_for_update();
    generate(Nushell, &mut cmd, "foo", &mut io::stdout());
}

#[derive(Parser)]
struct Cli {
    /// Multiline
    /// comment.
    #[arg(long, verbatim_doc_comment)]
    foo: bool,
}

Steps to reproduce the bug with the above code

Run these steps in nushell:

1. cargo run | save test.nu
2. source test.nu

Actual Behaviour

nu cannot parse the resulting file

Error: nu::parser::parse_mismatch

  × Parse mismatch during operation.
   ╭─[/tmp/clap-reprod/test.nu:4:1]
 4 │     --foo                     # Multiline
 5 │ comment.
   · ────┬───
   ·     ╰── expected valid variable name for this parameter
 6 │     --help(-h)                # Print help
   ╰────

Expected Behaviour

nu should be able to parse the file

Additional Context

This only occurs when the comment contains a dot

Debug Output

[clap_builder::builder::command]Command::_build: name="clap-reprod"
[clap_builder::builder::command]Command::_propagate:clap-reprod
[clap_builder::builder::command]Command::_check_help_and_version:clap-reprod expand_help_tree=true
[clap_builder::builder::command]Command::long_help_exists
[clap_builder::builder::command]Command::_check_help_and_version: Building default --help
[clap_builder::builder::command]Command::_propagate_global_args:clap-reprod
[clap_builder::builder::debug_asserts]Command::_debug_asserts
[clap_builder::builder::debug_asserts]Arg::_debug_asserts:foo
[clap_builder::builder::debug_asserts]Arg::_debug_asserts:help
[clap_builder::builder::debug_asserts]Command::_verify_positionals
[clap_builder::builder::command]Command::_build_bin_names
[ clap_builder::output::usage]Usage::get_required_usage_from: incls=[], matcher=false, incl_last=true
[ clap_builder::output::usage]Usage::get_required_usage_from: unrolled_reqs=[]
[ clap_builder::output::usage]Usage::get_required_usage_from: ret_val=[]

[poliorcetics]

Should be closed by #5359 yesterday, sorry I missed this issue