Merge pull request #12440 from woodychow:fix_normL2Sqr_speed_regression_3.4
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Thu, 6 Sep 2018 10:33:33 +0000 (10:33 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Thu, 6 Sep 2018 10:33:33 +0000 (10:33 +0000)

Trivial merge