github/hubot — comment on commit 306126afcd0a3d362ccbe1b665d0d6e417d6d650
File:  line 0
By unixcharles:

The multiple assignment is obviously a mistake left behind

@tombell, the first solution didn't assign the var to null in case of empty string, so it was passing the value of the previous iteration.

It cause the last message to pass twice since talker split all json messages sent on the same request with \n and a last \n at the end.

@eventualbuddha solution look like the nice one liner I was looking for