Merge pull request #8780 from vpisarev:fix_boxfilter
authorVadim Pisarevsky <vadim.pisarevsky@gmail.com>
Tue, 23 May 2017 21:46:12 +0000 (21:46 +0000)
committerVadim Pisarevsky <vadim.pisarevsky@gmail.com>
Tue, 23 May 2017 21:46:13 +0000 (21:46 +0000)

Trivial merge