Issue 5429 - Set ObjectExpression option of indent ESLint rule to first

eslint-config-eyeo/index.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 22 matching lines @@
     "block-scoped-var": "error",
     "block-spacing": "error",
     "brace-style": ["error", "allman", {allowSingleLine: true}],
     "camelcase": ["error", {properties: "never"}],
     "comma-dangle": "error",
     "comma-spacing": "error",
     "comma-style": "error",
     "computed-property-spacing": "error",
     "eol-last": "error",
     "func-call-spacing": "error",
-    "indent": ["error", 2, {SwitchCase: 1, ArrayExpression: "first"}],
+    "indent": ["error", 2, {SwitchCase: 1, ArrayExpression: "first",
+                            ObjectExpression: "first"}],
     "key-spacing": "error",
     "keyword-spacing": "error",
     "linebreak-style": "error",
     "lines-around-directive": "error",
     "max-len": ["error", 80, {ignoreUrls: true, ignoreRegExpLiterals: true}],
     "new-parens": "error",
     "no-array-constructor": "error",
     "no-caller": "error",
     "no-case-declarations": "off",
     "no-catch-shadow": "error",
@@ skipping 54 matching lines @@
     "strict": ["error", "global"],
     "valid-jsdoc": ["error", {
       requireParamDescription: false,
       requireReturn: false,
       requireReturnDescription: false
     }],
     "yield-star-spacing": "error",
     "yoda": "error"
   }
 };