bug#65049: Minor update to the repro steps

[Maxim Kim <habamax@gmail.com>]

Eli Zaretskii <eliz@gnu.org> writes:

So, it works for the repo with files having windows CRLF.
And doesn't work if the file has EOL type: LF.

The steps:

1. create new git repo (mkdir test, cd test, git init)
2. runemacs -Q
3. navigate to the created test dir and find a new file "hello.txt"
4. C-x RET f utf-8-unix RET
5. add "hello" text line and save
6. C-x v v to register file
7. C-x v v and add summary "test"
8. C-c C-c
8. add "world" text line to "hello.txt" and save
9. C-x v D
10. C-x v v and add summary "test"
11. C-c C-c

error: patch failed: hello.txt:1
error: hello.txt: patch does not apply