[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>
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 contrib/completion/git-prompt.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)