Update upstream source from tag 'upstream/5.2.1'
authorBoyuan Yang <byang@debian.org>
Wed, 10 Jun 2020 13:58:49 +0000 (09:58 -0400)
committerBoyuan Yang <byang@debian.org>
Wed, 10 Jun 2020 13:58:49 +0000 (09:58 -0400)
Update to upstream version '5.2.1'
with Debian dir a3afeca6fe353ee192f324514d165a826c39e1e2


Trivial merge