Re: [PATCH] completion: suppress unwanted unescaping of `read`

> From: Edwin Kofler <edwin@kofler.dev>
> 
> The function `__git_eread`, which reads the first line from the file,
> calls the `read` builtin without passing the flag option `-r`.  When
> the `read` builtin is called without the flag `-r`, it processes the
> backslash escaping in the text that it reads.  For this reason, it is
> generally considered the best practice to always use the `read`
> builtin with flag `-r` unless one intensionally processes the
> backslash escaping.  For the present case in git-prompt.sh, in fact,
> all the occurrences of the calls of `__git_eread` intend to read the
> literal content of the first lines.

> To make it read the first line literally, pass the flag `-r` to the
> `read` builtin in the function `__git_eread`.
> 
> Signed-off-by: Edwin Kofler <edwin@kofler.dev>
> Signed-off-by: Koichi Murase <myoga.murase@gmail.com>