util: prepend '(node) ' to deprecation messages

Changes included in this commit are

   1. Making the deprecation messages consistent. The messages will be in
      the following format

           x is deprecated. Use y instead.

      If there is no alternative for `x`, then the ` Use y instead.` part
      will not be there in the message.

   2. All the internal deprecation messages are printed with the prefix
      `(node) `, except when the `--trace-deprecation` flag is set.

Fixes: https://github.com/nodejs/io.js/issues/1883
PR-URL: https://github.com/nodejs/io.js/pull/1892
Reviewed-By: Roman Reiss <me@silverwind.io>

1 files changed, 4 insertions, 4 deletions

diff --git a/lib/http.js b/lib/http.js
index a9cfeddeea..cead865749 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -1,6 +1,7 @@
 'use strict';
 
 const util = require('util');
+const internalUtil = require('internal/util');
 const EventEmitter = require('events').EventEmitter;
 
 
@@ -91,9 +92,8 @@ Client.prototype.request = function(method, path, headers) {
   return c;
 };
 
-exports.Client = util.deprecate(Client,
-    'http.Client will be removed soon. Do not use it.');
+exports.Client = internalUtil.deprecate(Client, 'http.Client is deprecated.');
 
-exports.createClient = util.deprecate(function(port, host) {
+exports.createClient = internalUtil.deprecate(function(port, host) {
   return new Client(port, host);
-}, 'http.createClient is deprecated. Use `http.request` instead.');
+}, 'http.createClient is deprecated. Use http.request instead.');