Merge commit '9464b69da6b373d1eeb6b3d269ad029d9647b498'

* commit '9464b69da6b373d1eeb6b3d269ad029d9647b498':
  log: Unbreak windows support

Conflicts:
	libavutil/log.c

No change as we didnt use print_256color() in our implementation

Merged-by: Michael Niedermayer <michaelni@gmx.at>