Re: Issue 756 in robotframework: Using `--xunitfile` and `--listener` together throws non-fatal exception

[robotframework]

Updates:
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Comment #2 on issue 756 by mikko.korpela: Using `--xunitfile` and  
`--listener` together throws non-fatal exception
http://code.google.com/p/robotframework/issues/detail?id=756

Affects the return value of the test run (always returns 255) and also  
listener/logger will not run close-methods.