tools: make trailing commas consistent in .eslintrc

.eslintrc has lots of trailing commas and lots of places where there
aren't trailing commas. Use trailing commas throughout the files for
consistency.
PR-URL: #25739
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>

Author: Trott

.eslintrc.js

@@ -64,11 +64,11 @@ module.exports = {
 // start with something that looks like a variable name or code.
 ignorePattern: '^.{0,50}$|^ [a-z]+ ?[0-9A-Z_.(/=:[#-]',
 ignoreInlineComments: true,
-ignoreConsecutiveComments: true
+ignoreConsecutiveComments: true,
 },
 block: {
-ignorePattern: '.*'
-}
+ignorePattern: '.*',
+},
 }],
 'comma-dangle': ['error','only-multiline'],
 'comma-spacing': 'error',
@@ -168,27 +168,27 @@ module.exports = {
 {
 property: '__defineSetter__',
 message: '__defineSetter__ is deprecated.',
-}
+},
 ],
 // If this list is modified, please copy the change to lib/.eslintrc.yaml
 // and test/.eslintrc.yaml.
 'no-restricted-syntax': [
 'error',
 {
 selector: "CallExpression[callee.object.name='assert'][callee.property.name='deepStrictEqual'][arguments.2.type='Literal']",
-message: 'Do not use a literal for the third argument of assert.deepStrictEqual()'
+message: 'Do not use a literal for the third argument of assert.deepStrictEqual()',
 },
 {
 selector: "CallExpression[callee.object.name='assert'][callee.property.name='doesNotThrow']",
-message: 'Please replace `assert.doesNotThrow()` and add a comment next to the code instead.'
+message: 'Please replace `assert.doesNotThrow()` and add a comment next to the code instead.',
 },
 {
 selector: "CallExpression[callee.object.name='assert'][callee.property.name='rejects'][arguments.length<2]",
 message: '`assert.rejects()` must be invoked with at least two arguments.',
 },
 {
 selector: "CallExpression[callee.object.name='assert'][callee.property.name='strictEqual'][arguments.2.type='Literal']",
-message: 'Do not use a literal for the third argument of assert.strictEqual()'
+message: 'Do not use a literal for the third argument of assert.strictEqual()',
 },
 {
 selector: "CallExpression[callee.object.name='assert'][callee.property.name='throws'][arguments.1.type='Literal']:not([arguments.1.regex])",
@@ -209,7 +209,7 @@ module.exports = {
 {
 selector: 'ThrowStatement > CallExpression[callee.name=/Error$/]',
 message: 'Use `new` keyword when throwing an `Error`.',
-}
+},
 ],
 /* eslint-enable max-len */
 'no-return-await': 'error',
@@ -263,7 +263,7 @@ module.exports = {
 'space-unary-ops': 'error',
 'spaced-comment': ['error','always',{
 'block': {'balanced': true},
-'exceptions': ['-']
+'exceptions': ['-'],
 }],
 'strict': ['error','global'],
 'symbol-description': 'error',