Strange behaviour with format strings on Windows 10

[WonderboyFromMars]

I run into problems with some format patterns on a Windows machine. The progress bar doesn't "refresh on the line" (seems the \r is not working). Instead new lines are produced, e.g. something like

[==================================================================>..] 96.67 % [==================================================================>..] 96.89 % [===================================================================>.] 97.11 % [===================================================================>.] 97.33 %

This is reproduceable with the default pattern. Using this pattern [=█.] seems to work. I tried a Mac and everything works fine on that system.

[Fiedzia]

Unlike mac and linux, Windows uses \n instead of \r for new line. I'll update code to do so on this platform.