Merge pull request #13183 from tomoaki0705:fixCaroteneColorConvert2Gray
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Fri, 16 Nov 2018 20:35:51 +0000 (23:35 +0300)
committerGitHub <noreply@github.com>
Fri, 16 Nov 2018 20:35:51 +0000 (23:35 +0300)

Trivial merge