Add option to replace download progress overwrite (\r) with newline (\n)

[spidey]

I want to use youtube-dl to download some video with a GUI. I've hoped that I could use the progress reported by youtube-dl to show a graphical progress bar in my GUI.
The problem is that parsing individual bytes is much harder than parsing lines of text. This is why I'd like a switch on youtube-dl to use \n instead of \r when reporting the downloaded status of the video so far.

[phihag]

Well, if you split by \r instead of \n (or just replace \r with \n), you should already get what you want without any modification. By the way, we're planning on offering a "real" API (see #152) that would be ideal for the use case of a GUI.

Therefore, I don't think an additional option is necessary; as the GUI can just replace \n with \r (if you need any help with that, please post a link to GUI's source code repository).

[spidey]

That was what I did. I'm using Qt, so I made an intermediary "buffer" to process \r into \n. But thinking about command line usage, "tr" may do the trick.