[error_handler] Small PEP8 fixes.
[error_handler] Small PEP8 fixes.

+ 80 chars on the license.
+ Remove import *

DePierre/owtf,DarKnight--/owtf,DarKnight--/owtf,owtf/owtf,DarKnight24/owtf,DarKnight24/owtf,DarKnight24/owtf,owtf/owtf,DarKnight--/owtf,DePierre/owtf,DePierre/owtf,sharad1126/owtf,DarKnight24/owtf,sharad1126/owtf,DePierre/owtf,sharad1126/owtf,owtf/owtf,owtf/owtf,owtf/owtf,DarKnight--/owtf,sharad1126/owtf