git log -L:<funcname>:<file> bug report

Hello, this is my first time reporting an issue through mail, so I am
sorry if I missed something.
The file generated with `git bugreport` is attached to this mail, and
I also copy-pasted its contents below just in case.

Tell me if you need more precisions, I feel like this is a bug, but it
might just be an absence of feature.

Thanks in advance,

Robin Vagner.

---

Thank you for filling out a Git bug report!
Please answer the following questions to help us understand your issue.

What did you do before the bug happened? (Steps to reproduce your issue)

Use the command `git log -L:<funcname>:<file>` on a python file, with an existing function name in an existing file.

What did you expect to happen? (Expected behavior)

The git log function to find the given function name and display its history.

What happened instead? (Actual behavior)

I got this error : `fatal: -L parameter 'get_comment_from_args' starting at line 1: no match`

What's different between what you expected and what actually happened?

Since git already knows by default to use python for diffs with *.py files, I expected it to find the function.

Anything else you want to add:

It works properly if I add a .gitattributes file with the following line : `*.py diff=python`, which is weird because I thought this was already the default values for git (at least a `git diff` shows me the function name properly in the diff blobs.

Please review the rest of the bug report below.
You can delete any lines you don't wish to share.


[System Info]
git version:
git version 2.35.1.windows.2
cpu: x86_64
built from commit: 5437f0fd368c7faf1a0b5e1fef048232c1f2a3e6
sizeof-long: 4
sizeof-size_t: 8
shell-path: /bin/sh
feature: fsmonitor--daemon
uname: Windows 10.0 19043
compiler info: gnuc: 11.2
libc info: no libc information available
$SHELL (typically, interactive shell): <unset>


[Enabled Hooks]