NameError: global name 'exc_info' is not defined

[Andrew Ziem]

Test Worker using Action.TestActionProvider ... Exception while running operation 'test': 'global name 'exc_info' is not defined'
Traceback (most recent call last):
  File ".\bleachbit\Worker.py", line 336, in run_operations
    for dummy in self.clean_operation(operation):
  File ".\bleachbit\Worker.py", line 155, in clean_operation
    for ret in self.execute(cmd):
  File ".\bleachbit\Worker.py", line 103, in execute
    str(cmd), exc_info=exc_info)
NameError: global name 'exc_info' is not defined
FAIL

https://ci.appveyor.com/project/az0/bleachbit/build/1.0.49#L580

[Andrew Ziem (ahziem1)]

git 7556762