When I open my code using sublime just now, for some unknown reason there are a lot extra spaces added. I never face this issue before. After re-install sublime it became like this.
Some files are just fine
Those who is facing the same issue, this is not the editor problem but by the FTP. In my case, I was using FileZilla and the setting from this FTP was the one that changing the structure of the code when doing the file transfer.
Change the setting:
From FileZilla > Transfer > Transfer type > choose Binary
.