A function to check if the current terminal uses an old version of MinTTY that emulates a TTY. Note, however, that this does not check for more recent versions of MinTTY that use the native Windows console PTY directly. The old approach (where MinTTY emulates a TTY) sometimes requires different approaches to handling keyboard inputs.

Much of this code was originally authored by Phil Ruffwind and the git-for-windows project.