Python 3.9.6 causes warning about buffering for binary mode

[wvolz]

Running Carbon 1.1.8 is causing a warning when starting up under Python 3.9.6:

lib/python3.9/os.py:1023: RuntimeWarning: line buffering (buffering=1) isn't supported in binary mode, the default buffer size will be used

I believe the issue is caused by the "1" on this line:

carbon/lib/carbon/log.py

Line 24 in 9fad18d

self.path, os.O_CREAT | os.O_RDWR, openMode), 'rb+', 1)

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[deniszh]

Should be addressed

[JohnHay]

I also see it on FreeBSD with python 3.8.12:

Starting carbon.
Starting carbon-cache (instance a)
/usr/local/lib/python3.8/os.py:1023: RuntimeWarning: line buffering (buffering=1) isn't supported in binary mode, the default buffer size will be used
  return io.open(fd, *args, **kwargs)

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[RedShiba]

catching the same issue