[fix] Backport #1281 onto 2.x for maintenance.

Author: indexzero

lib/winston/common.js

@@ -388,7 +388,7 @@ exports.serialize = function (obj, key) {
 // `tail -f` a file. Options must include file.
 //
 exports.tailFile = function(options, callback) {
-  var buffer = new Buffer(64 * 1024)
+  var buffer = Buffer.alloc(64 * 1024)
     , decode = new StringDecoder('utf8')
     , stream = new Stream
     , buff = ''

lib/winston/transports/http.js

@@ -79,7 +79,7 @@ Http.prototype._request = function (options, callback) {
     res.resume();
   });
 
-  req.end(new Buffer(JSON.stringify(options), 'utf8'));
+  req.end(new Buffer.from(JSON.stringify(options), 'utf8'));
 };
 
 //