Merge pull request #16719 from alalek:dnn_disable_nn_builder_api_3.4
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Fri, 6 Mar 2020 12:26:48 +0000 (12:26 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Fri, 6 Mar 2020 12:26:48 +0000 (12:26 +0000)

Trivial merge