Add Buffer.alloc to nodejs externs.
See for reference.
Closes
@@ -55,3 +55,11 @@ buffer.SlowBuffer.prototype.slice;
* @return {string}
*/
buffer.SlowBuffer.prototype.toString;
+
+/**
+ * @param {number} size
+ * @param {(string|!Buffer|number)=} fill
+ * @param {string=} encoding
+ * @return {!Buffer}
+ */
+buffer.Buffer.alloc;
