Incorrect codec use, HookError_ubuntu.txt

[Seth Arnold]

Bug #1509020 is the second instance of an apport-reported bug that includes the following HookError_ubuntu.txt contents:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/apport/report.py", line 197, in _run_hook
    symb['add_info'](report, ui)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 66, in add_info
    check_attachment_for_errors(report, attachment)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 155, in check_attachment_for_errors
    trim_dpkg_log(report)
  File "/usr/share/apport/general-hooks/ubuntu.py", line 440, in trim_dpkg_log
    report['DpkgTerminalLog'] = '\n'.join([str(line.decode('utf-8')) for line in lines])
  File "/usr/share/apport/general-hooks/ubuntu.py", line 440, in <listcomp>
    report['DpkgTerminalLog'] = '\n'.join([str(line.decode('utf-8')) for line in lines])
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe2 in position 11584: invalid continuation byte

Obviously the specific byte and the position were different in the other bug report. Apport is assuming some input should be in utf8 but it is a byte stream instead, one that probably depends upon the user's locale.

Thanks

[Seth Arnold (seth-arnold)]

Bug #1509302 is another instance where HookError_ubuntu.txt shows this bug: https://launchpadlibrarian.net/222269771/HookError_ubuntu.txt