composer.json

{
  "repositories": [
    {
      "type": "package",
      "package": {
        "name": "zzzzz/no-trailing-comma",
        "description": "Placeholder package for clean diffs in composer.json.",
        "version": "1.0.0",
        "type": "metapackage",
        "license": "MIT",
        "authors": [
          {
            "name": "Austin Pray",
            "email": "austin@carrot.com"
          }
        ],
        "minimum-stability": "dev",
        "require": {}
      }
    },
    {
      "type": "composer",
      "url": "https://wpackagist.org"
    }
  ],
  "require": {
    "zzzzz/no-trailing-comma": "^1.0"
  }
}