package.json indentation always switched to spaces

[Oatelaus]

Environment

• CLI: 5.1.0
• Cross-platform modules: 4.2.1
• Android Runtime: 4.2.0
• iOS Runtime: 4.2.0
• Plugin(s):

dependencies:

    "nativescript-angular": "~6.1.0",
    "nativescript-audio": "^5.0.1",
    "nativescript-geolocation": "^4.3.1",
    "nativescript-localstorage": "^1.1.5",
    "nativescript-ng-shadow": "^2.1.0",
    "nativescript-orientation": "^2.2.1",
    "nativescript-permissions": "^1.2.3",
    "nativescript-phone": "^1.4.0",
    "nativescript-theme-core": "~1.0.4",
    "nativescript-ui-listview": "^3.7.0",

dev:

    "nativescript-dev-sass": "",
    "nativescript-dev-typescript": "~0.7.0",
    "nativescript-dev-webpack": "0.15.0",

Describe the bug
When running an npm install with no hooks directory, the package.json file will be rewritten with spaces instead of tabs.

To Reproduce

1. Ensure package.json has tab indentation.
2. delete hooks + node_modules
3. run npm install
4. Check package.json.

Expected behavior
The indentation style currently used to be honored, as per npm5+ does currently and as suggested by this merge request: #1779

[rosen-vladimirov]

Hey @Fedelaus ,
Thanks for reporting this issue. We've reproduced it and it is caused by the postinstall script of nativescript-dev-webpack plugin. We have created a fix for it and we'll include it in one of the next releases.