export --help not work

[hustcer]

Describe the bug

export --help not work

How to reproduce

$> export --help
Error: nu::parser::unexpected_keyword (link)

  × Unexpected keyword.
   ╭─[entry #27:1:1]
 1 │ export --help
   · ───┬──
   ·    ╰── unexpected export
   ╰────
  help: 'export' keyword is allowed only in a module.

Expected behavior

Output should be the same as help export

Screenshots

No response

Configuration

key	value
version	0.59.0
branch	main
short_commit	11bc056
commit_hash	11bc056
commit_date	2022-02-26 09:19:19 +00:00
build_os	macos-x86_64
rust_version	rustc 1.59.0 (9d1b2106e 2022-02-23)
rust_channel	stable-x86_64-apple-darwin
cargo_version	cargo 1.59.0 (49d8809dc 2022-02-10)
pkg_version	0.59.0
build_time	2022-02-26 18:34:28 +08:00
build_rust_channel	release
features	dataframe, default, trash, which, zip
installed_plugins	query, query json, query web, query xml

Additional context

No response

[fdncred]

it looks like it's coming from UnexpectedKeyword

[nyurik]

same with alias --help

❯ alias --help
Error: nu::parser::incorrect_value (link)

  × Incorrect value
   ╭─[entry #10:1:1]
 1 │ alias --help
   · ──┬──
   ·   ╰── unexpected Incomplete alias
   ╰────
  help: incomplete alias

[fdncred]

try help alias and help export

[nyurik]

try help alias and help export

Yes, those work, and they say that --help is a valid parameter :)