invalid character in attribute value Below is a rendering of the page up to the first error.
环境
OS : MacOS 12.2.1
Fontmin :  0.2.0
字体：方正准圆简体.ttf
文本内容：测试
点击生成


下面这个是生成结果
```
This page contains the following errors:
error on line 1 at column 275: invalid character in attribute value
Below is a rendering of the page up to the first error.
```

下面这个是生成出来的文件
[方正准圆简体_1669775244164.zip](https://github.com/ecomfe/fontmin/files/10118823/_1669775244164.zip)
