Bug#896921: Salt / tornado incompatibility - new upstream release is out with a fix

[Shish]

Looks like 2018.3.1 is out, and the version installed from upstream's
personal repository no longer has the bug :)

Specifically, I'm using
http://repo.saltstack.com/apt/debian/9/amd64/latest/pool/main/s/salt/
on Buster

-- 
Shish