Code review comment for lp:~seb128/sessioninstaller/handle-parsing-errors

I don't know, I'm probably overlooking something easy but the exception is

" File "/usr/lib/python2.7/dist-packages/xdg/IniFile.py", line 81, in parse
    raise ParsingError("Invalid line: " + line, filename)
ParsingError: ParsingError in file '/usr/share/app-install/desktop/workrave:workrave.desktop'"

I tried to "except ParsingError:" or "except DesktopEntry.ParsingError:" but the code doesn't enter the except branch when doing that...