Patch provided by @Billae
Avoid the following error:
File "/home/danlipsa/projects/spack/lib/spack/llnl/util/tty/log.py", line 768, in _writer_daemon
line = _retry(in_pipe.readline)()
File "/home/danlipsa/projects/spack/lib/spack/llnl/util/tty/log.py", line 830, in wrapped
return function(*args, **kwargs)
File "/usr/lib/python3.8/codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x97 in position 220: invalid start byte