winston+3.1.0.patch

diff --git a/node_modules/winston/lib/winston.js b/node_modules/winston/lib/winston.js
index b396a3a..f44efb7 100644
--- a/node_modules/winston/lib/winston.js
+++ b/node_modules/winston/lib/winston.js
@@ -74,89 +74,6 @@ winston.Transport = require('winston-transport');
  */
 winston.loggers = new winston.Container();
 
-/**
- * We create and expose a 'defaultLogger' so that the programmer may do the
- * following without the need to create an instance of winston.Logger directly:
- * @example
- *   const winston = require('winston');
- *   winston.log('info', 'some message');
- *   winston.error('some error');
- */
-const defaultLogger = winston.createLogger();
-
-// Pass through the target methods onto `winston.
-Object.keys(winston.config.npm.levels).concat([
-  'log',
-  'query',
-  'stream',
-  'add',
-  'remove',
-  'clear',
-  'profile',
-  'startTimer',
-  'handleExceptions',
-  'unhandleExceptions',
-  'configure'
-]).forEach(method => (
-  winston[method] = (...args) => defaultLogger[method](...args)
-));
-
-/**
- * Define getter / setter for the default logger level which need to be exposed
- * by winston.
- * @type {string}
- */
-Object.defineProperty(winston, 'level', {
-  get() {
-    return defaultLogger.level;
-  },
-  set(val) {
-    defaultLogger.level = val;
-  }
-});
-
-/**
- * Define getter for `exceptions` which replaces `handleExceptions` and
- * `unhandleExceptions`.
- * @type {Object}
- */
-Object.defineProperty(winston, 'exceptions', {
-  get() {
-    return defaultLogger.exceptions;
-  }
-});
-
-/**
- * Define getters / setters for appropriate properties of the default logger
- * which need to be exposed by winston.
- * @type {Logger}
- */
-[
-  'exitOnError'
-].forEach(prop => {
-  Object.defineProperty(winston, prop, {
-    get() {
-      return defaultLogger[prop];
-    },
-    set(val) {
-      defaultLogger[prop] = val;
-    }
-  });
-});
-
-/**
- * The default transports and exceptionHandlers for the default winston logger.
- * @type {Object}
- */
-Object.defineProperty(winston, 'default', {
-  get() {
-    return {
-      exceptionHandlers: defaultLogger.exceptionHandlers,
-      transports: defaultLogger.transports
-    };
-  }
-});
-
 // Have friendlier breakage notices for properties that were exposed by default
 // on winston < 3.0.
 warn.deprecated(winston, 'setLevels');
diff --git a/node_modules/winston/lib/winston/exception-stream.js b/node_modules/winston/lib/winston/exception-stream.js
index 5afdeb2..d7a5833 100644
--- a/node_modules/winston/lib/winston/exception-stream.js
+++ b/node_modules/winston/lib/winston/exception-stream.js
@@ -7,14 +7,14 @@
 
 'use strict';
 
-const Writable = require('readable-stream/writable');
+const { Writable } = require('stream');
 
 /**
  * TODO: add class description.
  * @type {ExceptionStream}
  * @extends {Writable}
  */
-module.exports = class ExceptionStream extends Writable {
+module.exports = class ExceptionStream {
   /**
    * Constructor function for the ExceptionStream responsible for wrapping a
    * TransportStream; only allowing writes of `info` objects with
@@ -22,7 +22,7 @@ module.exports = class ExceptionStream extends Writable {
    * @param {!TransportStream} transport - Stream to filter to exceptions
    */
   constructor(transport) {
-    super({ objectMode: true });
+    Writable.call(this, { objectMode: true });
 
     if (!transport) {
       throw new Error('ExceptionStream requires a TransportStream instance.');
diff --git a/node_modules/winston/lib/winston/logger.js b/node_modules/winston/lib/winston/logger.js
index f206f1a..2964c02 100644
--- a/node_modules/winston/lib/winston/logger.js
+++ b/node_modules/winston/lib/winston/logger.js
@@ -7,7 +7,7 @@
 
 'use strict';
 
-const stream = require('readable-stream');
+const stream = require('stream');
 const asyncForEach = require('async/forEach');
 const { LEVEL, SPLAT } = require('triple-beam');
 const isStream = require('is-stream');
@@ -22,14 +22,14 @@ const config = require('./config');
  * @type {Logger}
  * @extends {stream.Transform}
  */
-class Logger extends stream.Transform {
+class Logger {
   /**
    * Constructor function for the Logger object responsible for persisting log
    * messages and metadata to one or more transports.
    * @param {!Object} options - foo
    */
   constructor(options) {
-    super({
+    stream.Transform.call(this, {
       objectMode: true
     });
     this.configure(options);
diff --git a/node_modules/winston/lib/winston/tail-file.js b/node_modules/winston/lib/winston/tail-file.js
index 9870150..0e07cb8 100644
--- a/node_modules/winston/lib/winston/tail-file.js
+++ b/node_modules/winston/lib/winston/tail-file.js
@@ -9,7 +9,7 @@
 
 const fs = require('fs');
 const { StringDecoder } = require('string_decoder');
-const { Stream } = require('readable-stream');
+const { Stream } = require('stream');
 
 /**
  * Simple no-op function.
diff --git a/node_modules/winston/lib/winston/transports/file.js b/node_modules/winston/lib/winston/transports/file.js
index fa68e6d..4b2646c 100644
--- a/node_modules/winston/lib/winston/transports/file.js
+++ b/node_modules/winston/lib/winston/transports/file.js
@@ -12,7 +12,7 @@ const path = require('path');
 const asyncSeries = require('async/series');
 const zlib = require('zlib');
 const { MESSAGE } = require('triple-beam');
-const { Stream, PassThrough } = require('readable-stream');
+const { Stream, PassThrough } = require('stream');
 const TransportStream = require('winston-transport');
 const debug = require('diagnostics')('winston:file');
 const os = require('os');
diff --git a/node_modules/winston/lib/winston/transports/http.js b/node_modules/winston/lib/winston/transports/http.js
index 1e19815..aec5a42 100644
--- a/node_modules/winston/lib/winston/transports/http.js
+++ b/node_modules/winston/lib/winston/transports/http.js
@@ -9,7 +9,7 @@
 
 const http = require('http');
 const https = require('https');
-const { Stream } = require('readable-stream');
+const { Stream } = require('stream');
 const TransportStream = require('winston-transport');
 
 /**
diff --git a/node_modules/winston/lib/winston/transports/index.js b/node_modules/winston/lib/winston/transports/index.js
index f2f7cc3..f981b8a 100644
--- a/node_modules/winston/lib/winston/transports/index.js
+++ b/node_modules/winston/lib/winston/transports/index.js
@@ -7,50 +7,9 @@
 
 'use strict';
 
-/**
- * TODO: add property description.
- * @type {Console}
- */
-Object.defineProperty(exports, 'Console', {
-  configurable: true,
-  enumerable: true,
-  get() {
-    return require('./console');
-  }
-});
-
-/**
- * TODO: add property description.
- * @type {File}
- */
-Object.defineProperty(exports, 'File', {
-  configurable: true,
-  enumerable: true,
-  get() {
-    return require('./file');
-  }
-});
-
-/**
- * TODO: add property description.
- * @type {Http}
- */
-Object.defineProperty(exports, 'Http', {
-  configurable: true,
-  enumerable: true,
-  get() {
-    return require('./http');
-  }
-});
-
-/**
- * TODO: add property description.
- * @type {Stream}
- */
-Object.defineProperty(exports, 'Stream', {
-  configurable: true,
-  enumerable: true,
-  get() {
-    return require('./stream');
-  }
-});
+// Eagerly require() and export the modules because these will become a part of
+// the V8 snapshot.
+module.exports.Console = require('./console');
+module.exports.File = require('./file');
+module.exports.Http = require('./http');
+module.exports.Stream = require('./stream');