Fix lint warnings for scheduler/handler.py
Fix lint warnings for scheduler/handler.py

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