Merge pull request #13223 from dan-masek:fix_drawmatches_alpha
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 20 Nov 2018 14:59:35 +0000 (14:59 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 20 Nov 2018 14:59:35 +0000 (14:59 +0000)

Trivial merge