I noticed the output would differ in Windows and *nix, so I changed the print to print escape sequence without newline in Windows. Moreover, the escape sequence will be printed certainly on Windows but it doesn't matter.
And I make the option influence the segment "print(ff.stderr)" only so that do not make more confusion.
(The condition args.progress_only and platform.system() == "Windows" means that the option is only available in Windows.)
Sorry for making commit again so quickly.
I noticed the output would differ in Windows and *nix, so I changed the print to print escape sequence without newline in Windows. Moreover, the escape sequence will be printed certainly on Windows but it doesn't matter.
And I make the option influence the segment "print(ff.stderr)" only so that do not make more confusion. (The condition args.progress_only and platform.system() == "Windows" means that the option is only available in Windows.)
That is it.