Fix crash handler to not complain about debug_mode not being set
Fix crash handler to not complain about debug_mode not being set

totalretribution/Cura,ynotstartups/Wanhao,ad1217/Cura,fieldOfView/Cura,hmflash/Cura,senttech/Cura,bq/Ultimaker-Cura,markwal/Cura,totalretribution/Cura,fieldOfView/Cura,bq/Ultimaker-Cura,markwal/Cura,Curahelper/Cura,ad1217/Cura,ynotstartups/Wanhao,Curahelper/Cura,hmflash/Cura,senttech/Cura