Merge pull request #19959 from QuellaZhang:quella/c++20
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Wed, 21 Apr 2021 18:45:37 +0000 (18:45 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Wed, 21 Apr 2021 18:45:37 +0000 (18:45 +0000)

Trivial merge