Gitea rewrites the app.ini

Hi,

the following is certainly bit of a matter of taste. But because it is not consistent, I will bring it up: the app.example.ini uses ;; in comments and ; for commented out config lines. When using that example, gitea rewrites it on its first start by replacing ; with ;<space>. So all comments end up as:

; ; Max number of...

instead of

;; Max number of ...

Is this intentional? If so, can it be changed? If not, where in the code is this done so that I may change it myself?