The result of git.Git.show (...) misses newlines ("\n") at the end of a file.

Reproduction

1. setup git repo / use existing
2. add empty textfile "foo.txt", commit file
3. modify file by inserting string "foo\r\n", commit changes
4. run git cmd "show [commit sha]:foo.txt"
5. ... via GitPython, example:

# commits = ...
repo.git.show(f"{commits[0].hexsha}:{testfile}")

6. ... from Git terminal, pipe through cat etc. to see control characters, example:

git show 74e70e7:foo.txt | cat -vet | less

Observation

The string returned from show via GitPython has a trailing "\r", missing the "\n". The result from terminal execution has a trailing "\r\n".

Expected

Both outputs have the correct trailing "\r\n".

Addendum

• run GitPython cmd with option "with_extended_output" -> same result

• run GitPython cmd with option "stdout_as_string" -> same result (but in binary format)

• crosscheck: run "git show" via subprocess.popen -> output has correct "\r\n"

  # commits = ...
  p = subprocess.Popen(["git", "show", f"{commits[0].hexsha}:{testfile}"], stdout=subprocess.PIPE)
  out, err = p.communicate()
  print(repr(out))