dgram: changes Socket.close() to return itself

This commit adds a return statement to the dgram.Socket.close()
function that returns itself after it finishes. This follows along
the functionality of the more popular and, dare I say, father-library
`lib/net.js`.

PR-URL: https://github.com/iojs/io.js/pull/214
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/dgram.js b/lib/dgram.js
index 6b1772e61..ac7a054a4 100644
--- a/lib/dgram.js
+++ b/lib/dgram.js
@@ -358,6 +358,8 @@ Socket.prototype.close = function() {
   this._handle.close();
   this._handle = null;
   this.emit('close');
+
+  return this;
 };