Merge pull request #16078 from alalek:update_version_4.2.0-pre
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Fri, 6 Dec 2019 11:26:11 +0000 (11:26 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Fri, 6 Dec 2019 11:26:11 +0000 (11:26 +0000)

Trivial merge