How to use |\longremark{ } |

[daochuanli]

vim vimLearning-Go-zh-cn/ex-basics/src/fizzbuzz.go, then I found:
const (
FIZZ = 3 |\longremark{为了提高代码的可读性，定义两个常量。%
参阅``\titleref{sec:constants}''；}|
BUZZ = 5
)
And how to use |\longremark{ }| ？

[mikespook]

The explanation of longremark is here: https://github.com/mikespook/Learning-Go-zh-cn/blob/master/go-basics.tex#L19. Even though, the L19 don't use longremark in the line, the appearance will be same.