stream: avoid unnecessary concat of a single buffer.
Avoids doing a buffer.concat on the internal buffer when that array has only a single thing in it. As pointed out in nodejs/readable-stream#162 this causes an unnecessary copy.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Avoids doing a buffer.concat on the internal buffer when that array has only a single thing in it. As pointed out in nodejs/readable-stream#162 this causes an unnecessary copy.