New line added on windows but works fine for linux for 5.0.3

[AlexandreYang]

Hi, first thanks for the awesome work on isort,

It seems there is an issue with isort 5.0.3 on Windows.
The example below is failing on Windows but works on Linux.

isort_test_file.py:

try:
    import datadog_agent

    from ..log import CheckLoggingAdapter, init_logging

    init_logging()
except ImportError:
    pass

Command used:

isort --check-only --diff isort_test_file.py

Output on windows:

2020-07-06T10:32:38.8847283Z ERROR: D:\a\1\s\isort_test_file.py Imports are incorrectly sorted and/or formatted.
2020-07-06T10:32:38.8848516Z --- D:\a\1\s\isort_test_file.py:before	2020-07-06 10:30:34.221084
2020-07-06T10:32:38.8850018Z +++ D:\a\1\s\isort_test_file.py:after	2020-07-06 10:32:38.883964
2020-07-06T10:32:38.8850842Z @@ -1,6 +1,7 @@
2020-07-06T10:32:38.8851503Z  try:
2020-07-06T10:32:38.8852062Z 
2020-07-06T10:32:38.8852487Z      import datadog_agent
2020-07-06T10:32:38.8852759Z 
2020-07-06T10:32:38.8853257Z  
2020-07-06T10:32:38.8853464Z 
2020-07-06T10:32:38.8854079Z +
2020-07-06T10:32:38.8854581Z      from ..log import CheckLoggingAdapter, init_logging
2020-07-06T10:32:38.8854849Z 
2020-07-06T10:32:38.8855776Z  
2020-07-06T10:32:38.8855957Z 
2020-07-06T10:32:38.8856123Z      init_logging()

Azure Pipeline CI Build link
Example Code

Python version: 3.8.3
Windows image: windows-2019

[AlexandreYang]

Possibly same as (or related) #1277

[timothycrosley]

Thanks for reporting this bug! You were correct that it was highly related to #1277. A fix was just released in 5.0.8 with an additional regression test added.

[AlexandreYang]

Awesome, thanks!