ng generate m help does not generate module but shows help menu

### Which @angular/* package(s) are the source of the bug?

compiler-cli, Don't known / other

### Is this a regression?

No

### Description

Today I was trying to generate a module called "help" using the CLI. I ran the command:
```
ng generate m help
```

This does not generate the module but shows up the angular cli help menu.


### Please provide a link to a minimal reproduction of the bug

_No response_

### Please provide the exception or error you saw

_No response_

### Please provide the environment you discovered this bug in (run `ng version`)

```true
Angular CLI: 16.0.0
Node: 18.15.0
Package Manager: npm 9.5.0
OS: win32 x64

Angular: 16.0.0
... animations, cdk, cli, common, compiler, compiler-cli, core
... forms, material, platform-browser, platform-browser-dynamic
... platform-server, router

Package Version
---------------------------------------------------------
@angular-devkit/architect 0.1600.0
@angular-devkit/build-angular 16.0.0
@angular-devkit/core 16.0.0
@angular-devkit/schematics 16.0.0
@nguniversal/builders 16.0.0
@nguniversal/express-engine 16.0.0
@schematics/angular 16.0.0
rxjs 7.8.1
typescript 5.0.4
```

### Anything else?

_No response_

Issue に記載されている Angular CLI のバージョンで `ng generate m help` を再現し、その後、CLI の generate コマンドが `m help` 引数をどのように処理するかを調査します。コマンドがヘルプメニューを表示する代わりに、`help` という名前のモジュールを生成すれば完了です。

索引モデルが issue の本文から書いたものです。