Revert "eslint --fix ."

This reverts commit c93a08c.

Author: papandreou

test/unexpected-snapshot.js

@@ -745,10 +745,10 @@ it('should foo', function() {
               {
                 date: new Date('2019-05-09T12:34:56.789Z'),
                 buffer: Buffer.from([0xde, 0xad, 0xbe, 0xef]),
-                undefined,
+                undefined: undefined,
                 null: null,
-                NaN,
-                Infinity,
+                NaN: NaN,
+                Infinity: Infinity,
                 number: 123.456,
                 regexp: /abc(?:)/gim,
               },
@@ -763,21 +763,21 @@ it('should foo', function() {
               {
                 date: new Date('2019-05-09T12:34:56.789Z'),
                 buffer: Buffer.from([0xde, 0xad, 0xbe, 0xef]),
-                undefined,
+                undefined: undefined,
                 null: null,
-                NaN,
-                Infinity,
+                NaN: NaN,
+                Infinity: Infinity,
                 number: 123.456,
                 regexp: /abc(?:)/gim,
               },
               'to equal snapshot',
               {
                 date: new Date('2019-05-09T12:34:56.789Z'),
                 buffer: Buffer.from([0xde, 0xad, 0xbe, 0xef]),
-                undefined,
+                undefined: undefined,
                 null: null,
-                NaN,
-                Infinity,
+                NaN: NaN,
+                Infinity: Infinity,
                 number: 123.456,
                 regexp: /abc(?:)/gim,
               }