petdance/ack — pull request #250 by zhaocai (2013-03-27 01:25:53+00:00)
Title: add --no-filter option to avoiding entering pipe mode

ack erroneously goes into filter mode. In my case, it happened when I use ack with gnu parallel.

`cat filelist.txt | parallel -L 7 ack "query"`

Issue: #158