[Dev Deps] update eslint, @ljharb/eslint-config, tape; add safe-publish-latest

Author: ljharb

.eslintrc

@@ -6,12 +6,20 @@
 	"rules": {
 		"complexity": [2, 23],
 		"id-length": [2, { "min": 1, "max": 40 }],
-		"max-params": [2, 3],
 		"max-statements": [2, 23],
 		"max-statements-per-line": [2, { "max": 2 }],
-		"no-extra-parens": [1],
-		"no-invalid-this": [1],
 		"no-restricted-syntax": [2, "BreakStatement", "ContinueStatement", "LabeledStatement", "WithStatement"],
 		"operator-linebreak": [2, "after"]
-	}
+	},
+
+	"overrides": [
+		{
+			"files": "test/**",
+			"rules": {
+				"max-params": [2, 3],
+				"no-invalid-this": 1,
+				"no-magic-numbers": 0,
+			},
+		},
+	],
 }

implementation.js

@@ -1,5 +1,7 @@
 'use strict';
 
+/* global window */
+
 var keysShim;
 if (!Object.keys) {
 	// modified from https://github.com/es-shims/es5-shim
@@ -48,7 +50,6 @@ if (!Object.keys) {
 		$window: true
 	};
 	var hasAutomationEqualityBug = (function () {
-		/* global window */
 		if (typeof window === 'undefined') { return false; }
 		for (var k in window) {
 			try {
@@ -66,7 +67,6 @@ if (!Object.keys) {
 		return false;
 	}());
 	var equalsConstructorPrototypeIfNotBuggy = function (o) {
-		/* global window */
 		if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
 			return equalsConstructorPrototype(o);
 		}

package.json

@@ -33,10 +33,11 @@
 	"license": "MIT",
 	"main": "index.js",
 	"scripts": {
+		"prepublish": "safe-publish-latest",
 		"pretest": "npm run --silent lint",
 		"test": "npm run --silent tests-only",
 		"posttest": "npx aud",
-		"tests-only": "node test/index.js",
+		"tests-only": "node test",
 		"coverage": "covert test/*.js",
 		"coverage-quiet": "covert test/*.js --quiet",
 		"lint": "eslint ."
@@ -53,13 +54,14 @@
 	],
 	"dependencies": {},
 	"devDependencies": {
-		"@ljharb/eslint-config": "^13.1.1",
+		"@ljharb/eslint-config": "^14.1.0",
 		"covert": "^1.1.1",
-		"eslint": "^5.13.0",
+		"eslint": "^6.4.0",
 		"foreach": "^2.0.5",
 		"indexof": "^0.0.1",
 		"is": "^3.3.0",
-		"tape": "^4.9.2"
+		"safe-publish-latest": "^1.1.3",
+		"tape": "^4.11.0"
 	},
 	"testling": {
 		"files": "test/index.js",