No commandline help

[dtopuzov]

Environment Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 5.0
• Cross-platform modules: 5.0
• Android Runtime: 5.0
• iOS Runtime: 5.0
• Plugin(s): No

Angular CLI: 7.0.6
Node: 8.11.3
OS: win32 x64
Angular:
...

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.10.6
@angular-devkit/core         7.0.6
@angular-devkit/schematics   7.0.6
@angular/cli                 7.0.6
@schematics/angular          7.0.6
@schematics/update           0.10.6
rxjs                         6.3.3
typescript                   3.1.6

It looks to me it is caused by Angular CLI: 7.0.6.

Describe the bug {N} schematic help not displayed on command line when run command with --help.

To Reproduce ng new --collection=@nativescript/schematics --help => Help added by @nativescript/schematics is not displayed.

Expected behavior List all the option added by @nativescript/schematics

[vakrilov]

This issue should be resolved - check https://github.com/angular/angular-cli/issues/13681