[TYPO3-core] RFC #12232: Bug: md5_file() to check if a file has been changed is very expensive [performance]

[André Stösel]

> > The only thing i changed is, that you can force to check the content
> > with md5_file.
> 
> Is there a real usecase for this?

I don't know. (I didn't want to change the default behavior.)
Feel free to change this.