### ImageMagick version

7.1.1-5

### Operating system

MacOS

### Operating system, version and so on

Ventura 13.2.1 (Intel)

### Description

While experimenting with [newline escapes](https://imagemagick.org/script/escape.php), I found I was not able to get the literal `\` to work. When I use the text `everybody\nobody`, `\n` is interpreted as a new line, which is to be expected, but trying to escape the backslash using `everybody\\nobody` results in an unwanted line break. Maybe I'm missing something?

### Steps to Reproduce

Just run the following command with the attached image
`convert img.png -gravity center -fill white -pointsize 120 -font montserrat-Thin -annotate +0+0 "everybody\\nobody" out.jpg`
![img](https://user-images.githubusercontent.com/6848225/228930798-2e7eacdf-1c9e-4536-9ab3-70bc9aba3394.png)


### Images

![out](https://user-images.githubusercontent.com/6848225/228930601-a154e375-fafd-475e-b589-cd05d932a0c2.jpg)

Cannot use literal backslash
This is a GitHub Issue
repo:ImageMagick
owner:ImageMagick
Title : Cannot use literal backslash
Issue date:

--- start body ---
### ImageMagick version

7.1.1-5

### Operating system

MacOS

### Operating system, version and so on

Ventura 13.2.1 (Intel)

### Description

While experimenting with [newline escapes](https://imagemagick.org/script/escape.php), I found I was not able to get the literal `\` to work. When I use the text `everybody\nobody`, `\n` is interpreted as a new line, which is to be expected, but trying to escape the backslash using `everybody\\nobody` results in an unwanted line break. Maybe I'm missing something?

### Steps to Reproduce

Just run the following command with the attached image
`convert img.png -gravity center -fill white -pointsize 120 -font montserrat-Thin -annotate +0+0 "everybody\\nobody" out.jpg`
![img](https://user-images.githubusercontent.com/6848225/228930798-2e7eacdf-1c9e-4536-9ab3-70bc9aba3394.png)


### Images

![out](https://user-images.githubusercontent.com/6848225/228930601-a154e375-fafd-475e-b589-cd05d932a0c2.jpg)

--- end body ---
