Add changelog entry for https://github.com/StackStorm/st2/pull/3810.
Add changelog entry for https://github.com/StackStorm/st2/pull/3810.

StackStorm/st2,nzlosh/st2,nzlosh/st2,Plexxi/st2,Plexxi/st2,StackStorm/st2,nzlosh/st2,Plexxi/st2,Plexxi/st2,StackStorm/st2,nzlosh/st2,StackStorm/st2