Fixing syntax error on error_handling.py
Fixing syntax error on error_handling.py

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